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Pioneer Stage 4 DEX-P99RS

CD receiver/preamp

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Our take on the Pioneer Stage 4 DEX-P99RS

by Ken Nail
Pioneer

Why replace your factory radio?

Two good reasons - sound quality and cool features. A new car stereo offers power that's superior to most factory radios, along with more sophisticated tone controls. And most car stereos offer built-in or optional features that add safety and fun to life in your car, including inputs for your iPod or MP3 player, Bluetooth connectivity for hands-free cell phone calls, satellite radio or HD Radio reception, and connections for building an audio system in your car.

Pioneer's Stage 4 flagship receiver

Why run with the herd when you can be leader of the pack? Pioneer's Stage 4 DEX-P99RS isn't just another car CD receiver — it's an audiophile platform of the highest quality, built from the ground up for audio enthusiasts who won't settle for second best. There's no internal amp in the DEX-P99RS — connect the pristine output to external amplifiers when you build your system.

DEX-P99R

The DEX-P99R is at the heart of Pioneer's Stage 4 lineup


Custom components and uncompromising construction

A copper clad chassis

The DEX-P99RS houses its electronics in a copper-plated chassis that eliminates RF and magnetic signals that can introduce unwanted noise into even the finest audio components. Pioneer designed the circuit paths to be as short and symmetrical as possible, while all internal components are carefully arranged and shielded. All of these steps reduce interference that can diminish sound quality.

Top-of-the-line components

The engineers at Pioneer realize that standard "off-the-shelf" parts just won't cut it when you're shooting for reference standard performance. They use custom-designed audiophile-grade capacitors built specifically for the DEX-P99RS, ensuring the highest quality parts and cleanest performance. The receiver's preamp section, which uses the same Linear Technology technology found in high-end home audio systems, receives ample supplies of current from the receiver's dual power supplies, a rarity in car stereo construction.

Cutting-edge digital technology

If digital data isn't translated into the analog domain accurately, your sound will be subtly out of phase, resulting in a loss of precision and the addition of distortion. The DEX-P99RS employs Sound Master Clock Circuitry that guarantees ultra-precise digital-to-analog conversion.

The receiver also uses four digital-to-analog converters (DACs), one each for the preamp outputs, to convert your digital media with the highest possible signal-to-noise ratio and outstanding dynamic range. The 32-bit binary floating-bit digital signal processor provides high-speed sound processing for greater realism than the processing found in other car receivers.

Outstanding tools for sound adjustment

Rear panel connections

The 31-band equalizer offers independent control over the right and left channels for unparalleled shaping of the acoustic output. You can even set up five different custom memories to handle different types of music or listening situations.

The Auto EQ's supplied microphone samples the sound in your car, then tunes the 31 separate frequency bands to your interior, while balancing the output of all of your speakers independently. It also adjusts the time alignment of your system automatically to compensate for the differences in speaker distance from the driver — all the sound will reach your ears in perfect synchronization.

Want to keep your car's steering wheel audio controls?
In most vehicles, you can use an adapter (not included) to connect your vehicle's steering wheel controls to this Pioneer stereo. Connect a few wires, then program the adapter for your particular car and the receiver, and you'll retain the convenience of your steering wheel controls. Check the "Accessories" tab for compatible adapters.

iPod note: If you're going to use your iPod with this receiver, be sure to check Product Research for specific iPod model compatibility with this receiver or its optional iPod adapter.


Pioneer's Stage 4 System

Check out all the products in Pioneer's Stage 4 System, including receiver, speakers, subs, and amps.


See more info on this item

Highlights:

    General features:
    • CD receiver/preamp (no built-in amplifier, external amps required)
    • plays CDs, CD-Rs, and CD-RWs, including discs loaded with MP3, WMA, and AAC files (will not play Digital Rights-protected music files)
    • motorized, detachable face with white OEL display
    • copper-plated chassis
    Audio features:
    • four 24-bit DACs and 32-bit digital signal processor
    • 31-band equalizer with independent right and left channel adjustments
    • Auto EQ with supplied microphone
    • Auto TA time alignment
    • three level Sound Retriever for compressed music files
    • high- and low-pass filters
    Expandability:
    • built-in iPod control — cable included
    • compatible with optional Pioneer HD Radio tuner, satellite radio
    • inputs: front auxiliary input, rear USB input (for Windows Media devices, USB storage devices, and iPod)
    • outputs: 8-channel preamp outputs (5-volt highs, mids, lows, subwoofer)
    Other info:

    Hands-on research from the Crutchfield Labs (what are the Labs?)

    Features and Specs
    General
    CEA-2006 Compliant
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    No
    RMS Power Output
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    Amp Required
    Peak Output
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    N/A
    RMS Power Bandwidth
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    N/A
    Preamp Outputs
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    8-channel
    Sub Preamp Outputs
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    Yes
    Switchable Rear Preamp Outputs
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    No
    Preamp Voltage
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    5 volts
    Display Color
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    White
    Key Button Color
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    Variable
    EQ Bands
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    31
    Wireless Remote
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    Yes
    Steering Wheel Control Compatible
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    Adapter required
    Parts Warranty
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    1 Year
    Labor Warranty
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    1 Year
    Expandability
    AUX Input
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    Front/Opt.Rear
    USB Input
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    Rear/Opt.R
    Memory Card Slot
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    USB
    Bluetooth Compatible
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    No
    Satellite Radio Ready
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    No
    HD Radio
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    No
    Navigation
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    ---
    iPod Compatibility
    Full size
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    Classic/5Gen
    Nano
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    7/6/5/4/3/2/1
    Touch
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    5/4/3/2/1
    Mini
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    No
    iPhone
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    5S/5C/5/4S/4/3GS/3G/2G
    Tuner
    FM Sensitivity
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    9 dBf
    European Tuning
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    No
    Seek/Scan
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    Seek
    Radio Data System
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    No
    Product Research
    What's in the box?

    Download owner's manual

    • AM/FM/CD player
    • Face (attached)
    • Sleeve (attached)
    • Trim ring
    • Power/ground wiring harness
    • Preamp-output harness
    • Wireless remote control
    • CR2032 Lithium battery (installed)
    • Face case
    • 59" USB cable (with a male USB type-A connector on one end and a female USB type-A connector on other end)
    • 23" iPod cable (with an Apple iPod dock connector on one end and a USB type-A connector on other end)
    • Setup microphone (with attached 6.75' cable terminated by a 2.5mm connector)
    • Dash mount (for remote control)
    • Two-sided tape
    • Steering wheel mount (for remote control)
    • 2 Rubber straps
    • 2 Extraction keys
    • 4 Pan head ISO-mount screws (M5 x 8mm)
    • 4 Flat-head ISO-mount screws (M5 x 9mm)
    • Face fixing screw
    • Operation Manual (Eng) Operation Manual (Fre)
    • Installation Manual (Eng/Fre)
    • Important Notice
    • "RCA Caution" note
    • "Installation Warning" note
    • Limited Warranty (US/Canada)

    Our Product Research Team

    At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

    Audio Section
    Disc Playback
    Aux/USB/iPod Connection
    Radio Functions
    Display Features
    Remote Control

    Audio Section

    Reference Series Construction: The Pioneer Reference-Series DEX-P99RS features high-quality construction for better sound reproduction:

    • Copper-Plated Chassis: The Reference-Series DEX-P99RS features a copper-plated chassis to eliminate magnetic induction noise.
    • L/R Symmetric PCB: The Reference-Series DEX-P99RS's entire circuit board is painstakingly designed for utmost sound quality. Circuit trace path lengths are equalized and kept as short as possible, and components are carefully laid out and shielded to prevent RF noise or interference.
    • Custom-Made Capacitors: The Pioneer Reference-Series DEX-P99RS utilizes custom-made audiophile grade capacitors and other components to ensure the highest quality.

    Reference Series Sound: The Pioneer Reference-Series DEX-P99RS provides the purest, most realistic sound in your car by using high-quality circuitry, high-performance DACs, and high-precision digital-signal processing (DSP).

    • Sound Master Clock Circuitry: The latest integrated circuits require superior clock signal quality to handle digital data accurately without distortion at ever-higher speeds. The Sound Master Clock Circuitry generates clock waveforms to read and process digital signals with ultra-precision, and eliminate jitter noise in transmission. The result is faithful playback of the original source.
    • High-Slew Rate OP Amp: The DEX-P99RS features Linear Technology Corporation's high-slew rate OP amplifier used in high-end home audio for its precise gain and sound linearity characteristics.
    • L/R Independent High-Volt Volume Circuit: The DEX-P99RS features a custom-made electric volume driven by a dual-sided power supply (rarely found in a head unit), which provides overwhelming dynamic range and high S/N (Signal-to-Noise) ratio.
    • 24-Bit AKM DACs: The Pioneer Reference-Series DEX-P99RS uses four 24-bit AKM DACs (one for each preamp output: high, mid, low, and sub). These four 24-bit AKM DACs offer a 115dB S/N ratio with a high-durability to jitter, and superior dynamic range and quietness.
    • 32-Bit Binary Floating-Point DSP: The DEX-P99RS incorporates 32-Bit Binary Floating-Point DSP for high-precision and high-speed sound processing. The unique use of 32-bit "floating point" DSP offers significantly higher accuracy, especially at high frequencies and low signal levels.

    4 Pair of 5.0-Volt Preamp Outputs With DSP Control: The Pioneer DEX-P99RS features four pairs of 5.0-volt preamp outputs (High, Mid, Low, Sub), along with a 4-way network DSP. This allows you to create a 4-way multi-amp, multi-speaker system with separate speakers for reproduction of high, middle, low, and ultra-low frequencies (bands), each driven by a dedicated amplifier (sold separately). The 4-Way Network DSP lets you divide the audio signal into different frequency bands, and then reproduce each of them through the units corresponding preamp outputs. You can then make precise adjustments to the reproduced frequency band (with a low-pass filter and high-pass filter), level, phase, and other parameters to match the characteristics of each pair of preamp outputs.

    • Frequency Range: You can adjust the HPF (high-pass filter) and LPF (low-pass filter) cut-of frequency to set the reproduced frequency range for each pair of preamp outputs. The HPF cuts frequencies (low) below the set frequency, letting only high frequencies to pass through. The LPF cuts frequencies (high) above the set frequency, letting only low frequencies to pass through. You can make the following HPF and LPF adjustments:
      • High: LPF (5k, 6.3k, 8k, 10k, 12.5k, 16k, 20k); HPF (800Hz, 1k, 1.25k, 1.6k, 2k, 2.5k, 3.15k, 4k, 5k, 6.3k, 8k, 10k, 12.5k, 16k)
      • Mid: LPF (25Hz, 31.5Hz, 40Hz, 50Hz, 63Hz, 80Hz, 100Hz, 125Hz, 160Hz, 200Hz, 250Hz, 315Hz, 400Hz, 500Hz, 630Hz, 800Hz, 1k, 1.25k, 1.6k, 2k, 2.5k, 3.15k, 4k, 5k, 6.3k, 8k, 10k, 12.5k, 16k, 20k); HPF (20Hz, 25Hz, 31.5hz, 40Hz, 50Hz, 653Hz, 80Hz, 100Hz, 125Hz, 160Hz, 200Hz, 250Hz, 315Hz, 400Hz, 500Hz, 630Hz, 800Hz, 1k, 1.25k, 1.6k, 2k, 2.5k, 3.15k, 4k, 5k, 6.3k, 8k, 10k, 12.5k, 16k)
      • Low: LPF (25Hz, 31.5Hz, 40Hz, 50Hz, 63Hz, 80Hz, 100Hz, 125Hz, 160Hz, 200Hz, 250Hz, 315Hz, 400Hz, 500Hz, 630Hz, 800Hz, 1k, 1.25k, 1.6k, 2k, 2.5k, 3.15k, 4k, 5k, 6.3k, 8k, 10k, 12.5k, 16k, 20k); HPF (20Hz, 25Hz, 31.5hz, 40Hz, 50Hz, 653Hz, 80Hz, 100Hz, 125Hz, 160Hz, 200Hz, 250Hz, 315Hz, 400Hz, 500Hz, 630Hz, 800Hz, 1k, 1.25k, 1.6k, 2k, 2.5k, 3.15k, 4k, 5k, 6.3k, 8k, 10k, 12.5k, 16k)
      • Sub: LPF (25Hz, 31.5Hz, 40Hz, 50Hz, 63Hz, 80Hz, 100Hz, 125Hz, 160Hz, 200Hz, 250Hz, 315Hz, 400Hz, 500Hz, 630Hz, 800Hz, 1k, 1.25k, 1.6k, 2k, 2.5k, 3.15k, 4k, 5k, 6.3k, 8k, 10k, 12.5k, 16k, 20k); HPF (20Hz, 25Hz, 31.5hz, 40Hz, 50Hz, 653Hz, 80Hz, 100Hz, 125Hz, 160Hz, 200Hz, 250Hz, 315Hz, 400Hz, 500Hz, 630Hz, 800Hz, 1k, 1.25k, 1.6k, 2k, 2.5k, 3.15k, 4k, 5k, 6.3k, 8k, 10k, 12.5k, 16k)
    • Slope: Adjusting the HPF/LPF slope (filter attenuation slope) lets you adjust the continuity of sound between speakers. You can make the following slope adjustments for each frequency band:
      • High-HPF: 6dB/oct., 12dB/oct., 18dB/oct., 24dB/oct., 30dB/oct., 36dB/oct.
      • High-LPF, Mid-LPF, Mid-HPF, Low-LPF, Low-HPF, SW-LPF, SW-HPF: 6dB/oct., 12dB/oct., 18dB/oct., 24dB/oct., 30dB/oct. 36dB/oct.
    • Phase: You can switch phase (normal/reverse) for each preamp channel output signal. This will improve the continuity of sound between speakers.
    • Level: The difference in reproduced levels between connected speakers can be corrected by adjusting the level of each select frequency band.
      • High-LPF, High HPF, Mid-LPF, Mid-HPF: 0 dB to -24 dB
      • Low-LPF, Low-HPF, SW-LPF, SW-HPF: 6 dB to -24 dB
    • Mute: You can mute each preamp output channel individually. When an output channel is muted, no sound is outputted to the connected speaker.

    Auto EQ and TA: Auto EQ uses the included microphone to monitor and analyze acoustics, then automatically fine-tunes all frequency bandwidths and front and rear speaker digital parametric equalization. Auto TA uses this same microphone to automatically adjust for distance between each speaker and the listening position. This entire process occurs in 543 seamless steps in just about 5 minutes to tailor specific musical and acoustic characteristics to your vehicle.

    Position Adjustments: The DEX-P99RS offers the following position controls to accurately reproduce music in your vehicle:

    • Balance Adjustment: You can select a balance setting that provides an ideal listening environment in all occupied seats.
    • Position Selector: The Position Selector function lets you automatically adjust the speakers' output levels and inserts a delay time to match the number and position of occupied seats. You can choose Driver seat, Passenger seat, or Front seat.
    • Time Alignment: The Time Alignment function lets you adjust the distance between each speaker and the listening position, so that sound from all speakers reaches the driver's ears in perfect sync. Time Alignment can be set manually (custom), automatically (Auto TA), or to a default (initial) setting.
      • Initial: factory supplied time alignment setting
      • Custom: adjusted time alignment that you create (0.0' to 155.39')
      • Auto TA: Auto TA automatically estimates the delay from each speaker to the driver's position and adjusts speaker sound output timing accordingly (using supplied microphone)

    L/R Independent 31-Band Digital Equalizer: The built-in 31-band digital equalizer allows you to precisely control the in-cabin acoustics of your vehicle. Unparalleled flexibility is provided through either Left/Right independent setup, or for easier setup L/R common is available. Each frequency band of the 31-band digital EQ (20Hz, 25Hz, 31.5hz, 40Hz, 50Hz, 63Hz, 80Hz, 100Hz, 125hz, 160hz, 200Hz, 250Hz, 315hz, 400hz, 500hz, 630Hz, 800hz, 1k, 1.25k, 1.6k, 2k, 2.5k, 3.15k, 4k, 5k, 6.3k, 8k, 10k, 12.5k, 16k, 20k) can be adjusted from -12 to +12. There are 5 custom memories to allow multiple setups. There is also a Flat setting.

    Note: The 31-band digital equalizer can also be set automatically using the auto-setup microphone.

    Sound Retriever: The Sound Retriever function automatically enhances compressed audio and restores rich sound.

    Loudness: The Loudness function compensates for deficiencies in the low and high sound ranges at low volume levels.

    Digital Attenuator: You can use the digital attenuator function to reduce distortion from CD or other sources recorded at higher volumes.

    Source Level Adjustment (SLA): SLA lets you adjust the volume level of each source to prevent radical changes in volume when switching between sources.

    Disc Playback

    MP3/WMA/WAV Playback: This unit can play MP3, WMA and WAV files recorded on CD-ROM, CD-R, and CD-RW discs in ISO9660 Level 1/Level 2, Joliet, and Romeo formats. MP3 files with a bit rate from 8-320 kbps, WMA files with a constant bit rate from 48-320 kbps, and WMA files with a variable bit rate from 48-384 kbps are supported. The unit is compatible with ID3 Tags and will display artist, folder, file, and album name, plus comments. Up to 8 directories, 99 folders and 999 files per disc are recognized by this unit.

    AAC Decoding: This unit will playback AAC files encoded by iTunes recorded onto CDs, however files purchased from the iTunes Music Store (.m4a file extension) are not compatible. Tracks recorded at transmission rates of 16-320 kbps are playable on this unit.

    Note: When playing compressed audio, there is no sound during fast-forward or reverse.

    File Name List: The File Name List feature displays a list of MP3/WMA/AAC folders and tracks on a loaded CD or connected USB device, so you can easily access your music. Track Title List will also display the list of track titles on a CD Text disc.

    Disc Titles: You can input CD titles and display them on the heaudnit's LCD display. The next time you insert a CD for which you have entered a title, the title of the CD is displayed. You can use the disc title input feature to store up to 48 CD titles in the unit. Each title can be up to 10 characters long.

    Installation Angle: Optimum CD playback performance is obtained when the unit is installed at an angle of less than 60-degrees.

    Aux/USB/iPod Connection

    Auxiliary Input: The DEX-P99RS is equipped with a front panel 2.5mm stereo minijack auxiliary input (located on bottom of front-panel) for connecting external components, such as a portable MP3 player). AUX must be turned on in the setup menu in order to be selected as a source.

    USB Input: The unit's rear-panel USB type-A input (attached via 8" pigtail) and the included 59" USB cable allow you to connect a USB portable audio player or USB flash memory that is USB Mass Storage Class compliant. This unit can play MP3, WMA, AAC, and/or WAV files stored on a USB Mass Storage device in FAT16 or FAT32 file system formats. MP3 files with a bit rate from 8-320 kbps, AAC files with a bit rate of 16-320 kbps, WMA files with a constant bit rate from 48-320 kbps, and WMA files with a variable bit rate from 48-384 kbps are supported. The unit is compatible with ID3 Tags and will display artist, folder, file, and album name, plus comments. Up to 8 directories, 500 folders, and 15000 files per USB device are recognized by this unit.

    Note: USB portable audio players that can be charged via USB will be charged when plugged into the CD receiver's USB port and the vehicle's ignition switch is set to ACC or on.

    iPod Interface: The DEX-P99RS can control and playback songs from select iPods/iPhones with a standard Dock Connector. You can connect your iPod/iPhone using the unit's rear-panel USB input, the supplied 59" USB cable, and the included 23" USB/iPod dock cable (or the USB/iPod dock cable that came with your iPod/iPhone). The head unit's USB port provides a direct digital bit connection to your iPod/iPhone to the unit's DSP and DAC for high-quality sound. When connected via USB, you can choose to control the iPod from the head unit or the iPod itself. You can perform multiple search functions, including playlist, genre, artist, or album searches. You can also select random and repeat functions for a certain song, all songs, or specific folders. The head unit will also display your iPod's music file information, including Play Time, Song Title, Artist Name, and Album Title. The unit also offers Link Search, which searches for other songs of the currently selected artist, album, or genre. While connected and the ignition switch is set to ACC or ON, the USB connection will power and charge your iPod. The Pioneer DEX-P99RS is "Made for iPod/iPhone" compatible and supports the following iPod/iPhone model functions (as of 6/24/2014):

    Apple Device Generation Tested Version Media Type Control Type Display Type Charge
    Audio Video Head Unit iPod/iPhone Artist/Song Text Track Info
    iPhone 2G 3.1.3 Y N Y Y Y Y Y
    3G 4.2.1 Y N Y Y Y Y Y
    3GS 5.1.1 Y N Y Y Y Y Y
    4 7.1.1 Y N Y Y Y Y Y
    4S 7.1.1 Y N Y Y Y Y Y
    5 7.1.1 Y N Y Y Y Y Y
    5C 7.1.1 Y N Y Y Y Y Y
    5S 7.1.1 Y N Y Y Y Y Y
    touch 1st 2.2.1 Y N Y Y Y Y Y
    2nd 4.2.1 Y N Y Y Y Y Y
    3rd 5.1.1 Y N Y Y Y Y Y
    4th 6.1.3 Y N Y Y Y Y Y
    5th 7.1.1 Y N Y Y Y Y Y
    nano 1st 1.3.1 Y N Y N Y Y Y
    2nd 1.1.3 Y N Y Y Y Y Y
    3rd 1.1.3 Y N Y Y Y Y Y
    4th 1.0.4 Y N Y Y Y Y Y
    5th 1.0.2 Y N Y Y Y Y Y
    6th 1.1 PC Y N Y Y Y Y Y
    7th 1.2 Y N Y Y Y Y Y
    classic 80GB 1.1.2 Y N Y Y Y Y Y
    120GB 2.0.1 Y N Y Y Y Y Y
    160GB 2.0.4 Y N Y Y Y Y Y
    video 5th 1.3 Y N Y N Y Y Y
    iPad 1 5.1.1 Y N Y Y Y Y N
    2 7.1.1 Y N Y Y Y Y N
    3 7.1.1 Y N Y Y Y Y N
    4 7.1.1 Y N Y Y Y Y N
    mini 7.1.1 Y N Y Y Y Y Y
    air 7.1.1 Y N Y Y Y Y N
    Note: Apple iPod/iPhone software updates may change functionality results. If you download a newer software version, you may need to reset the head unit and your iPod/iPhone to regain functionality. If this doesn't work, you may need to wait until a newer software update is available.

    IP-Bus Auxiliary Input: You can connect an additional auxiliary component by connecting an IP-Bus/RCA connector. The optional Pioneer CD-RB10 (130CDRB10, sold separately) lets you connect an additional auxiliary component via the IP-Bus connector on the back of the head unit. The 10-character name of the connected auxiliary component can be entered into memory, and will appear as you cycle through the sources.

    Radio Functions

    Supertuner IIID AM/FM Tuner: The Supertuner IIID features Feed Forward Control, which avoids multi-path interference. This pre-detection of interference enables quick filter control and results in less distortion. In addition, the Supertuner IIID creates enhanced stereo during multi-path interference, unlike conventional tuners that collapse to mono. Digital processing reduces distortion, and improves Signal-to-Noise Ratio and stereo separation. Advanced analog technology improves signal processing sensitivity.

    BSM (Best Stations Memory): BSM lets you automatically store the six strongest stations under preset buttons 1-6 of the currently tuned band. The tuner has 3 FM banks and 1 AM bank. You can store 6 presets for each bank giving you a total of 18 FM presets and 6 AM presets.

    Local Tuning: Local seek tuning lets you tune in only those radio stations with sufficiently strong signals for good reception. There are 4 level of sensitivity for FM and two levels for AM. The higher settings allow reception of only the strongest stations, while lower settings let you receive progressively weaker stations.

    Display Features

    Motorized Face: The Pioneer Reference-Series DEX-P99RS features a motorized face which electronically slides-down, with the press of a button, to insert and eject a disc.

    Detachable Face Security: This unit features Detachable Face Security. If the front panel is not detached from the head unit within five seconds of turning off the ignition, a warning tone will sound. The warning tone can be turned off in the menu, if desired. A hard-plastic face case is provide to protect the front-panel when detached.

    OEL Display: The Pioneer DEX-P99RS features a white Organic Electroluminescent (OEL) dot matrix display which is easier to see in most lighting conditions. You can easily view file and folder lists from your MP3, WMA, and CD Text-encoded discs, radio presets, or data from your iPod, and XM Radio. The brightness of the display can be set between 0 and 15.

    Multi-Language Display: For your convenience, this unit is equipped with a multiple language display. You can select the language which is best suited to your first language - English, French, or Spanish.

    Adjustable Illumination: You can select the illumination for the head unit's front-panel controls. You can choose between White, Red, Amber, Green, and Blue. You can also adjust the brightness of each color. In addition, you can create a custom illumination color by adjusting the level of three primary colors (Red, Green, Blue). You can even set the unit's button illumination to only turn on when you turn your vehicle's headlights on (using the radio's illumination wire).

    Note: The head unit's OEL display will remain white even it button illumination is adjusted.

    Entertainment Displays: You can enjoy entertainment displays while listening to each sound source. You can choose from the following: Basic Display, Spectrum Analyzer 1/2, Level Meter, or Display Off.

    Ever Scroll: When the Ever Scroll feature is set to On, recorded text information scrolls continuously on the display. It will auto-scroll up to 64 characters. Set this feature to Off if you prefer the information to scroll only once.

    Reverse Mode: If you don't perform an operation within approximately 30 seconds, screen indications start to reverse, and then continue reversing every 10 seconds.

    Illumination Dimmer: To prevent the display from being too bright at night, the display is automatically dimmed when the car's headlights are turned on. You can turn the dimmer function On or Off. The orange/white illumination wire must be connected to the vehicle's headlight circuit in order for this feature to work.

    Display Illumination/Clock Display: When the Clock Display has been turned on, pressing and holding the Source button turns off audio output, but the clock display remains on. When the Clock Display has been turned off, pressing and holding the source button turns the unit off completely. Even if you have turned the radio completely off you can view the clock display by pressing the clock/display button. The clock will then remain On until you turn it back Off. When the unit is On you can select between the clock display or the audio track/tuner display.

    Remote Control

    Wireless Remote Control: The DEX-P99RS comes with an IR wireless remote control. The remote allows you to control the volume, switch between sources, pause the CD, change the display, and adjust the audio. The mute button allows you to quickly lower the volume by about 90% ( function that cannot be performed from the front panel). The remote comes with a dash-mount and steering-wheel mount for added convenience.

    Steering Wheel Remote Compatibility: The head unit features an OEM steering wheel remote control input on the rear of the unit to allow you to keep your vehicle's radio steering wheel remote controls when used with the optional PAC SWI-RC Steering Wheel Control Interface Adapter (541SWIRC, sold separately); or the optional Metra ASWC Steering Wheel Control Interface Adapter (120ASWC, sold separately).

    Note: Please consult the Crutchfield Car Selector to see if your vehicle is compatible.

     

    Product reviews from the Crutchfield Labs (what are the Labs?)

    Video: Pioneer Stage 4 DEX-P99RS CD Receiver

    Video: Pioneer Stage 4 DEX-P99RS CD Receiver

    by Robert Ferency-Viars, Video Guest
     
    Video: Pioneer Stage 4 DEX-P99RS CD Receiver

    We got the skinny on the Pioneer DEX-P99RS CD receiver directly from Pioneer. This stereo is unsurpassed for delivering audiophile-quality sound in the car.

     
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    5 out of 5

    Pioneer DEX-P99RS

    Written By Dale.M, Boise, ID. on Thursday, June 05, 2014
    Crutchfield Customer Review (What's this?)
     
    I believe that this is a difficult unit to understand. I took over one year to appriecate the built in quality of this CD player. Oneday i thought I finally had it tuned in and not evan close. I didn't understand that adjustments with the engine off only produce 12.5 to 12.8 volts-14.6 volts when engine is on. the sounds produced are different. didn't realize that all cd's are not recorded the same. Bad recordings are bad-not a thing you can do-if you try and adjust for the bad sound you then take and destroy a good recording. You adjust once again and wonder if you will ever find the Utopia sound that you have paid for. I have the Utopia NO7 Active/Two Milbert Bam 235ab's and one Mosconi 200.4. I have them installed in a 78 ford pickup. Believe me when i say that I have been through heck with this system. One day I'm driving down the road and decide to take the tweets down to 1245 hrz, I had them at 3500-the sound opened up and the recording bloomed to a level never heard-but this was by accident. I have given-up on adjustments that are by the book and went with my ear. I'm an old man. Understand what it is you have and the system I have is truly Utopia. This CD player has enough adjustments that whatever your hearing is, it can provide for it. I was headed to the dump with this system-But I didn't give up. Sound proofing, wires, and anything else plays on the other-weakest point is the strongest. Dual batt.- 200 amp alternator and the list just goes on.
    Pros:
    It can provide the best sound out there. Or it can take and break your spirit.
    Cons:
    Patience, Time and money.
    1 out of 1 people found this helpful
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    5 out of 5

    Pioneer CD receiver/preamp/DEX-P99RS

    Written By Hans, San Francisco on Saturday, May 03, 2014
    Crutchfield Customer Review (What's this?)
     
    I have been waiting for this type of receiver for ever.The Last time I seen a preamp receiver was in the 80's was a Kenwood cassette receiver it was top of line, Now in the twenty teens we have once again simply the best sound, all I care about is the best sound possible period.
    Pros:
    The best sound Quality in a CD receiver. no bells and whistles, just pure SQ.
    Cons:
    none.
    3 out of 3 people found this helpful
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    5 out of 5

    Best stereo money can buy

    Written By mario, albuquerque, nm on Friday, April 18, 2014
    Crutchfield Customer Review (What's this?)
     
    Expensive but well worth the money. Once I got my system tuned all I can say is... WOW I am impressed to say the least. There is definately a learning curve in getting in and out of menus but after a few days you'll be able to change your setting with ease. The stereo comes with the capabiity to auto tune itselft to your car but any serious audiophile will opt to set it up manually and for this I would recommend Room Eq RTA software as well as a calibrated mic. There is alot of info at DIYmobieaudio specically for this stereo so pleny of help is availble if you choose to tune your car manually. Also make sure you have decent drivers, amps, wiring and clean power or you will be wasting your money and time with this high end stereo. I currently have Focal KRX2 midrivers, hiquophen tweeters, jl audio12W6 sub and jl audio hd amps, with wiring including an alternator upgrade and sound deadening and this stereo sounds great
    Pros:
    Clean pure sound with the versatility to tune your stereo exactly how you want to.
    Cons:
    Price, but hey you're paying for the best in the market.
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    5 out of 5

    If you are serious about QUALITY sound ............

    Written By Audio Buff, Belleville, IL on Monday, December 30, 2013
    Crutchfield Customer Review (What's this?)
     
    This is THE BEST car receiver I have EVER owned!! It is a tuner and 31 Band equalizer in ONE!! My speakers literally came to life when I installed this unit. Simplest install ever, but HIGHLY involved in setting up. The setup is definitely not a discouraging point though. Once you learned you don't forget it. I like how you can adjust the time alignment of each speaker and set the levels for each channel (i.e. LF~RF~LR~RR). This unit separates each speaker into Sub, Low, Mid, and High groups. You MUST have an amplifier in order to use this head unit!! I have had this head unit for a month now and after extensive hours of fine tuning the AUTO adjustments I am literally speechless on how GREAT my system sounds. I only changed the head unit (no amplifier tweaks or speaker upgrades or anything) and my speakers seem like they woke-up from their nap of boredom!! If you enjoy listening to music for sound quality then this is DEFINITELY the unit for you!!!
    Pros:
    Super easy installation; backup battery in case of power loss; beautiful display; classy and professional appearance; steering wheel remote control; auto tuning feature; the list goes on and on!!
    Cons:
    Setup is not the easiest, but it can be accomplished with reading the manual and doing research on what sounds the frequency bands produce
    6 out of 6 people found this helpful
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    5 out of 5

    Great Quality

    Written By Anonymous, Houston TX on Tuesday, November 05, 2013
    Crutchfield Customer Review (What's this?)
     
    Out of the box performance. I installed this unit in a 2009 Challenger SRT8 using a McIntosh MC440 6ch amp. Hooked up to the stock speakers with no tuning and still blew me away with sound quality. I currently have a Clarion DRZ9255, Addzest HX-D1, Clarion DRX-9255, Pioneer deh-p880prs, Clarion HX-D10, McIntosh MX-406, and McIntosh Mx5000. All models listed are excellent SQ. pieces and all were hooked up to McIntosh amps when tested. The biggest problem with testing different CD players is using the same amps and speakers when testing so you have a more accurate comparison. I thought I had the best until I heard the Pioneer.
    Pros:
    SQ. Very clean unit looks amazing
    Cons:
    Tuning is a bit complicated. It would be nice if Bluetooth was already installed instead of the $200 add on.
    5 out of 5 people found this helpful
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    5 out of 5

    Hard to beat

    Written By Jojo, Fresno,Ca on Wednesday, October 30, 2013
    Crutchfield Customer Review (What's this?)
     
    There is really not much out there that comes close to this head unit. I am someone that is a bit leery about audio manufacturers that tout features without saying much about the efforts and technology used to to make their components sound great. Pioneer has built a deck that is packed with SQ focused technology - 4 24 bit DAC's, custom made capacitors, copper shielding, cd mechanism that is isolated from external vibrations, etc. they have produced a deck that demonstrates a complete focus on sound quality, and built into it features that set it apart from the competition such as ipod connectivity, hd tuner ready, built in crossovers and 31 band eq, time alignment, 2 aux inputs plus a USB input, giving you three different options for expansion. All of this in a single din unit. I was originally in the market for a nakamichi cd700ii. What I found is that Nakamichi's legendary flagship CD player has reliability issues and hard to find support. This Pioneer, with its conveniences and features as well as a Focus on sound quality made it hard to beat. No external crossovers to install. Everything can be controlled and tweaked from the driver's seat. It's an amazing deck, both in features and sound quality. I hated picking Pioneer over Nakamichi, but I am very happy with this deck and am convinced it is the better HU - probably one of the best out there.
    Pros:
    Sound quality and feature set.
    Cons:
    There's a bit of a learning curve figuring out the controls. Nothing too difficult, and once you figure it out, it gets easy. At first it can seem a bit too involved and non-intuitive. Ultimately it's not bad, you just have to get past the initial getting acquainted stage.
    2 out of 2 people found this helpful
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    5 out of 5

    Unbelievable!!!!

    Written By Troy, Columbia,mo on Monday, October 07, 2013
    Crutchfield Customer Review (What's this?)
     
    I got this installed a few weeks ago. I waited to write this because it takes a little while to figure out this unit. I have it in a 2010 Tacoma it still has the factory door speakers but I installes a JL XD700/5 amp and a sealed prefab box with a alpine type R 10. I will warn you that the set up can be very difficult but the great thing is it has an auto tune feature that works extremely well. I have dealt with auto tuning system before like the alpine ones but this Pioneer auto tune is almost spot on!!! The ipod sound is much better than expected. The sound all around is truly amazing and that is with the factory front speakers cant wait to install son really nice components with some soft dome tweeters!!! It is a very pricey unit but I am very happy with the results!!!
    Pros:
    DAC, tuning ability, clean sound
    Cons:
    price and difficult to set up
    1 out of 1 people found this helpful
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    5 out of 5

    beyond belief

    Written By zech912, Phoenix, AZ on Saturday, June 22, 2013
     
    I have had my installs done at the very best shop, with high end Focal and JL components, amps, subs. Because the shop is used to high end (but they do not currently carry Pioneer), they have always been: "ho-hum, it's ready, here are your keys." But when I had this deck installed (again, not even purchased there), they came out to the waiting room and said with a bit of awe: "This is amazing, you have got to come back and hear this." The installers were back there themselves admiring the beautiful audio. If I close my eyes, I can easily imagine I am in the studio itself. Well done Pioneer. As far as the complexity, I would never take on adjusting the crossovers, TA, things like that (but easy for the brilliant installer and those who understand how to do so), but the EQ and other settings are all well within the novice's ability, and fun to set.
    Pros:
    beautiful sound, beautiful understated appearance. words inadequate.
    Cons:
    The color of the dial lighting is adjustable, but not the center text/ sound level display. The sound level display is something I have missed for years, it is absolutely awesome that this has it, and the white is great, so I am going to extreme effort to find a con, but here it is: It would be great if the sound level display was also adjustable.
    6 out of 6 people found this helpful
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    5 out of 5

    Best Radio out there!

    Written By Mmac, Little Rock, Arkansas on Wednesday, May 01, 2013
    Crutchfield Customer Review (What's this?)
     
    I have two of these decks and they are awesome! I have never had such a deck that puts out the quality of sound the Dex-P99rs does. great sound, great enhancement to my ipod and sounds even better with a CD.
    Pros:
    Competition radio for sure!
    Cons:
    Took me a while to fully understand the full potential this deck has to offer. But other than the patients of studing the manuel it's worth every penny!
    3 out of 3 people found this helpful
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    5 out of 5

    Every Note is perfect

    Written By Ralph, NJ on Monday, April 08, 2013
     
    Fantastic ! I installed the ultimate STAGE 4 system, for about $7,000+ and it sounds like it was worth every penny. I can hear music the way it was meant to be heard , the way engineers recorded it. I combined the Head unit with Pioneer stage 4 amps & speakers and they sound amazing.
    Pros:
    TA - time alignment . Auto Equalization . Control over the configuration of all the crossovers & slopes from the head unit is great Control of 4 seperate preamp outs is great for fine tuning the system.
    Cons:
    Cost is very high but worht it.
    2 out of 2 people found this helpful
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    5 out of 5

    Best ever

    Written By Brett1622, Wasilla AK 99654 on Thursday, November 22, 2012
    Crutchfield Customer Review (What's this?)
     
    Best SQ deck ever! But this deck is not for beginners. Very advanced tuning knowledge is required or your wasting your money. Wish they made this deck in a dbl din touch screen version. Would make tuning much easier, Please pioneer read this.
    Pros:
    Beautiful sound quality. Great simple classy look.
    Cons:
    Small screen for tuning.
    10 out of 10 people found this helpful
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    5 out of 5

    Mazdaspeed3 2012 Pioneer Stage 4 DEX-P99RS

    Written By Legend, South Florida on Saturday, July 07, 2012
    Crutchfield Customer Review (What's this?)
     
    JUST GREAT!!!!!!!!
    Pros:
    This unit has so many sound adjustments for down right pure pleasure!!! Now due to all the setting make sure you have some time for sound adjusting with the unit! It's simple looking and that's what I needed for the car. Just ENDLESS SOUND
    Cons:
    Not enough hours in the day to sit in the car and listen to whatever you prefer with adding a 32gb flash drive.
    4 out of 4 people found this helpful
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    5 out of 5

    Truly AMAZING!!!

    Written By Ty, Oahu, HI on Tuesday, April 03, 2012
    Crutchfield Customer Review (What's this?)
     
    Pure joy...If you are serious about music, you NEED to get this deck. Upgraded from the DEX-880PRS, there is a HUGE difference. SQ from this deck is simply amazing. I don't want to leave the car, I sometimes will just sit in the car after getting home just to bask in the amazing sound this deck delivers. I was really hesitant on the upgrade, kept asking myself, "could there be that much of a difference?" "Is it worth the money?" An astounding YES, YES, YES!!! This deck even makes your iPod sound good, huh...









    Pros:
    Total system control! Tweak-ability. SQ
    Cons:
    Price
    12 out of 13 people found this helpful
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    5 out of 5

    Musical tranquilizer

    Written By Delbert G, Miami Beach, FL on Thursday, March 15, 2012
     
    To be the owner of one of these Head Units, i am extremely proud, i cannot think of another Product in recent time that i have spent so much of my time with, my commute to work , even in extreme traffic jam on I-95 in Miami is heavenly, prior to purchasing this unit, i decided to invest in high quality Speaker Cable and Interconnects, this Unit is currently connected to (2) 5 Meter length of Audioquest Columbia Interconnects and Audioquest Type 4 Speaker Cables, my aim was to have maximum transfer of the Signals to the Amps. i would recommend this Unit to any one who is looking for an heavenly time in their vehicle
    Pros:
    Sound quality, Built Quality, Tuning Capabilities, Remote control Etc.
    Cons:
    Annoying Error 19 and Error 16 Messages, High price tag
    5 out of 7 people found this helpful
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    5 out of 5

    There can be only one

    Written By JohnV, Hampton VA on Thursday, March 15, 2012
     
    If you value sound or wounder what is missing in your current SQ system this is the HU for you. The price is ridiculously low for the capabilities this product brings to the table. Even if you choose to never use the Auto-tune, EQ, TA, or crossover point/ slope the HU is a great CD player and easily the the best sounding radio I have EVER heard in a car. There can be only one best available HU and this is it
    Pros:
    attractive understated appearance, best sounding HU for sale in USA, tremendous user control, auto EQ actually works well, silent operation, the radio sounds excellent with the best RECEPTION I have gotten in over 2 decades! The biggest Pro is the Crutchfield service
    Cons:
    the menus are complicated so it is not that easy to use all those audio features even with the users manual, knobs are small and slick
    10 out of 10 people found this helpful
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    5 out of 5

    one of a kind

    Written By muzikman, omaha nebr on Thursday, February 09, 2012
     
    once you get on to all tuning capabilities you have fun trying different setups. This is a machine for all tunes. I tried to get the only person that i kn ew of to tune it for me , im really glad he was too busy cause with enough patience ive almost mastered this unit and now its fun If you dont have this unit you only have an average unit . Most impressive piece ive ever bought and ive spent a lot on car audio All others are second to this one !!!
    Pros:
    SO MANY WAYS TO SET UP AND TUNE ALL FREQUENCIES
    Cons:
    TAKES PATIENCE IF YOUR AVERAGE USER
    7 out of 8 people found this helpful
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    5 out of 5

    Pretty amazing

    Written By RonR, Pine grove, PA on Wednesday, January 25, 2012
    Crutchfield Customer Review (What's this?)
     
    What an awesome piece. Its fairly simplistic, no frills appearance is merely a front for one of the most versatile pieces of equipment Ive ever seen. The complete adjustability is mind blowing. Theres nothing else you will ever need. The sound quality is top notch to say the least. As someone else said... If your serious about your sounds, you need this piece.
    Pros:
    everything inside the box
    7 out of 7 people found this helpful
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    4 out of 5

    Review Revisited

    Written By MBluAgain, Fort Lauderdale on Thursday, January 05, 2012
     
    I needed to update the previous review. I called support about the issue with the blanking display and I was immediately sent a new unit as an advance replacement for the wonky unit.

    If you are considering a purchase of this, the King Kong of all head units, you would be silly to buy it elsewhere.

    Nice Job.
    14 out of 14 people found this helpful
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    2 out of 5

    Sound and Features-Great, Build Quality-?

    Written By MBlu, Fort Lauderdale on Thursday, December 29, 2011
    Crutchfield Customer Review (What's this?)
     
    I purchased this unit in March 2011. All the reviews and the hype are true. This thing is the Bee's Knees. Complaints about the remote are silly and in my case the remote is the only way to control the head unit. That is because when I touch the face-plate controls on the right side of the unit, it blacks out and locks up.

    I can't control anything including turning it off, not with the remote or the wheel controls. I have to stop the car, turn the car off and restart the system.

    It started as an occasional glitch and is now an every touch occurrence.

    I thought that there might be some sort of coverage since it was a signature product, but no information remains about the signature program, so I don't know.

    Pros:
    Sound and Versatility
    Cons:
    Quality
    18 out of 32 people found this helpful
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    5 out of 5

    Porsche 911 (993) P99RS Understated Elegance

    Written By Ghee Buttersnaps, Vail, Colorado & Cumming Georgia on Thursday, December 15, 2011
    Crutchfield Customer Review (What's this?)
     
    The HiFi option to my MY98 Porsche 911(993) needed an upgrade to present day car audio HiFi offerings. When researching the best of the best the DEX P99RS head unit came highly recomended... by even its competitors no less fancy that. The elegant asthetic of the P99RS supports the 911s interior and the tier one audio presentation matches the hi performance of the car itself. A couple of PRS- A900 amplifiers rounds out the new HiFi system.
    Pros:
    Audio performance, understated asthetic, DSP filtering, 24/96 DAC, display color choices, 4 channel output, did I mention audio performance. I wanted the best of the best... and thank Gawd the best is understated asthetically... Fits the 993 Porsche dash like it was OEM.
    Cons:
    Not enough understanding of the P99RS functionality at this time. Not one to duck bit a product.
    15 out of 18 people found this helpful
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    5 out of 5

    Simply amazing

    Written By JuanH, Laredo, TX on Friday, April 22, 2011
    Crutchfield Customer Review (What's this?)
     
    I ordered this unit for my Dodge Ram 3500 and even though I thought I had a good sounding system already, this completely represents what music is all about. Music has a complete different sound, you will hear tones from instruments you've been missing. If you are looking to hear music the way it is supposed to be heard then you are looking at the right unit. I have been an audio junkie for greater of 17 years and have never heard anything like this. Ever.

    Simply Amazing.
    26 out of 28 people found this helpful
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    5 out of 5

    Excellent. If you're serious, you need this.

    Written By TD76, NJ on Thursday, January 06, 2011
    Crutchfield Customer Review (What's this?)
     
    Simply put, this is an absolutely excellent receiver. If you're serious in to sound quality and car audio, this is the receiver for you. Combine excellent tuning/processing with an audiophile quality unit and you have a winner. I was never a Pioneer guy before buying this unit, but when this hit the United States, I absolutely could not resist. I bought it the first day that Crutchfield got them in stock a while back. Build quality, sound quality, etc are all top notch. Sound stage is wide and very detailed. Some other great bonuses of this unit are the fact that it has USB input and works great with an external hard drive (lossless files via .WAV are supported as well), color of button illumination can be changed (which is important for me to keep a stealth integration), OEM steering wheel support, and more.

    After much tuning, its sounds absolutely fantastic. The time-alignment and very adjustable crossover network are worth it alone. Dual 31band EQ just adds to the awesomeness. Only thing I was not crazy about was the Auto TA/EQ/X-OVER results. Doing it by self yielded MUCH better results.
    35 out of 36 people found this helpful
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    4 out of 5

    world class

    Written By instalher, chilliwack b.c. on Tuesday, November 23, 2010
     
    wonderful deck, easy to use and looks great in most dashes... the sound quality of this deck beats my old denford hands down. also feature for feature nothing comes close for the price.. i have a top 3 iasca car in the world and use this deck, which is why i place so high.. the remote is very intuitive and easy to use and can work from almost anyplace in the car.. my one grip is at night you cant see the buttons on the remote.. they should lite up and the carry case is cheap junk.. for the money i would expect only the best. if you can live with these tiny problems and have some money buy this deck!!
    16 out of 16 people found this helpful
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    5 out of 5

    Phenomenal Receiver

    Written By jasonxz, Arlington, TX on Friday, November 19, 2010
    Crutchfield Customer Review (What's this?)
     
    Fantastic Receiver. The Autotuning capabilities (in regard to positioning & equalizing) can make anyone's stereo sound like they know what they're doing.
    If you have the $ (it's expensive!), this should definitely be high on your list. If you get a chance to listen to one -- go for it! You'll be glad you did.
    7 out of 8 people found this helpful
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    5 out of 5

    Pioneer does it again

    Written By JG, ND, USA on Wednesday, October 27, 2010
     
    I have used many Pioneer decks in several different vehicles and have yet to be disappointed. This deck in particular is nearly perfect in most ways. I would recommend it to anyone with moderate or greater knowledge of the car audio world. Tuning is pretty straightforward and sound is excellent once tuning is completed. If you are a beginner, you may want to do your homework before purchasing, otherwise, for all you audiophiles out there, this deck is where its at. Kudos Pioneer and Crutchfield for great products and service.
    7 out of 7 people found this helpful
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    5 out of 5

    Pioneer Stage 4 DEX-P99RS

    Written By technology, Placerville, CA on Saturday, June 19, 2010
    Crutchfield Customer Review (What's this?)
     
    I have been a loyal Pioneer buyer for over 15 years and have yet to be dissapointed, from my first $500 car- to now customs that I have been fortunate enough to be able to build for people, I have always been able to depend on Pioneer electronics, this dex-p99rs is an awesome reciever, skillfully designed, with symetrical modest and almost undercover styling, plus amazing audiophile sound and adjustability. I would have paid twice retail just to say I installed one of these(dont get any crazy ideas Crutchfield ) Great job Pioneer! I am forever jealous of your mad skillz...
    12 out of 14 people found this helpful
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    5 out of 5

    The best there is

    Written By Bong, Texas on Friday, April 02, 2010
     
    Pioneer did great with this HU. independent 31 band EQ, indedependent crossover and most of all, a great looking radio. installed in my Honda Civic paired with USamps tube amps and it sounds fantastic. kudos to pioneer for making this HU affordable.. to all the car audio enthusiasts out there, you will miss half of your life if you don't get this......happy listening..
    20 out of 30 people found this helpful
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    1 question already asked

    What is the best amp to get for this processor to be used with four speakers. The speakers have 4ohms each. Do I need one or two amplifiers. Which amp will receive the wiring from the processor correctly. High output wires low output wires? [ Gene  Jul 14, 2014 ]
    5 answers
    • You have crossover for 4 pairs of speakers. I ran 6 channel for 3 tweets mids and bass. I ran a miono sub amp for sub. I used Zapco. Of common brands Id buy JL Ausio amps. [ JEFFERY   Jul 17, 2014 ]
    • This head unit shouldn't be ran with less than two amplifiers, preferably four though. If using two amplifiers you will need to connect the MID output to your front speakers, your LOW output to your rear speakers, and SUB output to your subwoofer. This can be accomplished by running one 4 channel amp for your component speakers and one single channel (Mono) amp for your sub. The high channel will need to be disabled in the HU setup options. Like this... High -> Disabled. Mid -> Front L/R on 4-channel amp. Low -> Rear L/R on 4-channel amp. Sub-> L/R on 1-channel amp. There are no best amps, it's personal preference when it comes to sound reproduction. Any major manufacturer will work with this HU. I will warn your though, this HU is very high end and in-depth. Setup will take several hours of work to get everything sounding the way you want it after install. [ William   Jul 15, 2014 ]
    • Based on what you've asked, I don't think you need to go as far as buying a Pioneer P99, stick with a deh-80prs for less money, less complexity. At your level of experience, you won't know the difference. Find yourself a JL audio 300/4v2 class A/B amp and have a reputable shop do the install. [ JUSTIN E   Jul 15, 2014 ]
    • You would need 1 four channel amp or 2 two channel amps for four speakers to get the FULL fuctionality of the p99. Low voltage RCA wiring is needed. [ Adam   Jul 15, 2014 ]
    • I'm sorry I purchased the head unit and let a stereo shop do the work so I wouldn't know which route to say go. I have it with a PDX 5 Alpine amp on a Harley Davidson bagger with 2 sets of 6x9's. Sounds amazing and love it but setting it can be a challenge if you're not a technical person. [ MARCUS K   Jul 15, 2014 ]

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    For a more in-depth review and enhanced detailed information on the Pioneer Stage 4 DEX-P99RS, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_130DEXP99R/Pioneer-Stage-4-DEX-P99RS.html ).