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Pioneer DEQ-S1000A

Compact 4-channel car amplifier with digital signal processing — 14 watts RMS x 4

2 Reviews | 3 questions - 3 answers

Overview

Our take on the Pioneer DEQ-S1000A

You want better sound but can't change the radio in your vehicle? You can still improve the sound quality and fidelity of a standard car audio system with the addition of Pioneer's DEQ-1000A 4-channel amplifier and digital sound processor. The amp can pump out 14 watts RMS to each front and rear speaker, so you'll be able to hear your music clearly over road and wind noise.

Made to improve your sound

You want better sound but can't change the radio in your vehicle? You can still improve the sound quality and fidelity of a standard car audio system with the addition of Pioneer's DEQ-1000A 4-channel amplifier and digital sound processor. The amp can pump out 14 watts RMS to each front and rear speaker, so you'll be able to hear your music clearly over road and wind noise.

Sound processing

In addition to giving you more volume, this amp/processor lets you adjust all the fine details of your music's sound, using 31-band equalizers, high- and low-pass filters, time alignment, and more. You can even eliminate any peculiar factory EQ and time alignment settings, before applying your own sonic improvements.

Can stand alone with more power

The DEQ-1000A has speaker-level inputs for installing with a factory radio, as well as RCA inputs when using an aftermarket receiver. The processor features six high-level RCA preamp outputs, so you can add your own more powerful amplifiers to the mix. You can set these outputs to drive front and rear speakers with a sub, or for a 3-way system using tweeters, midrange drivers, and a sub.

Smartphone control

You control the processing using Pioneer's Sound Tune app on your smartphone connected via USB. You can also stream music from your device into the system using this connection. The app is available for both Android and iPhones.

Product Highlights:

  • compact 4-channel car amplifier with digital signal processing
  • 14 watts RMS x 4 at 4 ohms (4-8 ohm stable per channel)
  • non-bridgeable
  • 3 pairs of 4-volt processed preamp outputs (Front/High, Rear/Mid, Subwoofer)
    • channels can be set for 2-way (front, rear, sub) or 3-way (network) operation
  • digital signal processing control by Pioneer Sound Tune app on your smartphone via USB connection
    • works with Android and iPhones
  • controls include 31-band EQ, time alignment, and special effects
  • source calibration (cancels factory time alignment & EQ)
More Info:
  • preamp and speaker-level inputs
  • wiring and hardware not included with amplifier
    • 12-gauge power and ground leads recommended
  • fuse rating: 10A x 1
  • dimensions: 6-7/8"W x 1-5/8"H x 4"D
  • warranty: 1 year
  • Our 60-day money-back guarantee

What's in the Box:

  • Digital signal processor
  • Wireless remote control
  • Infrared remote sensor with attached 79" cable (3.5mm plug)
  • Circular dual-sided 3M adhesive
  • 5' USB extension cable (Male Type A USB on one end and female Type A USB on other end)
  • 5' Power/signal harness (16-pin plugs on each end)
  • 5' Light green parking brake lead with 2-pin connector on one end
  • 2 Right angle mounting brackets
  • 4 M4 x 8mm machine screws
  • 4 Self-tapping screws (1/2" length)
  • Instruction Manual (Eng/Fren)
  • Instruction Manual (Spanish)
  • Limited Warranty sheet
  • Recommendation on the volume adjustment

Straight forward Integration. Sound has improved dramatically. Installed in my Nissan Altima SR with 6 speakers (Infinity tweeters, 5.25 doors, and 6x9 back). DSP fixed the poor signal delivered by the OEM Radio. Excellent customer service (Gil), fast delivery, and accurate description.

William Ortiz, Puerto Rico

Reviews

Pioneer DEQ-S1000A Reviews

Average Customer Review(s):

(2 Reviews)

Way better sound from factory headunit!

Garrin from Springdale, AR on 2/25/2019

Crutchfield Customer Review (What's this?)

Great way to improve factory detuned systems, but headunit may be clearer sounding. It will though make your factory stereo play a must wider and more complete frequency range. Easy to set crossovers and each speakers level. It is a lot to learn as there are 4 modes that have distinct sounds and quirks. Volume cannot be controlled via factory knobs and buttons in certain modes. And the remote is a easy way around this, but the remote will not quickly run volume up and down it's a press, press, press kinda deal. My favorite part about this is having a DSP that can be mounted anywhere due to fairly small size and no need in being able to access it to make adjustments! Lastly I cannot attest the power it outputs to speakers as mine runs through a four channel amp. But wouldn't count on it rocking your world!

Pros: Easy adjustment after initial install.

Cons: Modes and different ways to operate through or around dsp completely! May just be learning curve.

Huge Difference for a low cost DSP

William Ortiz from Puerto Rico on 1/2/2019

Crutchfield Customer Review (What's this?)

Straight forward Integration. Sound has improved dramatically. Installed in my Nissan Altima SR with 6 speakers (Infinity tweeters, 5.25 doors, and 6x9 back). DSP fixed the poor signal delivered by the OEM Radio. Excellent customer service (Gil), fast delivery, and accurate description.

Pros: Fair price for DSP Sound Fidelity Very easy installation (for dummies) Works with 2 ohms speakers

Cons: USB cord Should be longer.

Details

Hands-on research

Product Research

Features

Overview: The Pioneer DEQ-S1000A is a digital sound processor with a built-in amplifier. Using the Pioneer Sound Tune app, you can control the unit with your iOS or Android smartphone. The 48-bit, dual core DSP-based processor enhances the signal of your factory OEM stereo to produce cleaner, more dynamic sound. You can also use the processor with an aftermarket stereo. The DEQ-S1000A features a 31-band EQ and digital time alignment to further improve the performance. The unit gives you the flexibility to upgrade your system all at once, or gradually by adding additional amplifiers and aftermarket speakers and subwoofers. The DEQ-S1000A comes with a wireless remote, and a wiring harness for your signal and power requirements.

Uncompromised Sound: Factory OEM sound systems often use embedded, pre-set equalization to match the head unit to the factory speakers. This pre-set EQ curve limits the power output and frequency range to prevent damaging the low-performance speakers. The pre-set EQ also boosts mid-bass and high frequencies to provide the perception of higher sound quality. The DEQ-S1000A cancels the factory pre-set EQ curve, corrects and restores the audio signal to be closer to the original source, applies post-correction sound controls (31-band EQ, digital time alignment), and outputs the uncompromised audio signal to the built-in amplifier and high-voltage preamp outputs. If you have upgraded the speakers in your vehicle, the DEQ-S1000A helps you get more performance out of them, providing a cleaner signal and more power than the factory radio alone.

Sound Tune App: Pioneer's Sound Tune app puts control of the DEQ-S1000A in the palm of your hand. The app accesses the music library on your phone. When you connect your smartphone to the digital sound processor, you can use the power of the app to bring high-end audio to your factory or aftermarket stereo system. The Sound Tune app is compatible with iPhone/iPad/iPod touch and requires iOS 10.3 or later. It is also compatible with Android smartphones running OS 5.0 and up. Features of the Sound Tune app include:

  • EQ Presets: The app features seven preset EQ curves, plus two Custom EQ settings. The 7 presets include: Powerful, Super Bass, Natural, Vocal, Vivid, Dynamic, and Flat. The two Custom modes (Labeled A and B) can be edited and saved using a 31-band or 13-band EQ with +/-12dB of adjustment.
  • Super "Todoroki" Sound: Super "Todoroki" Sound boosts low frequencies, and automatically adjusts midrange and high frequencies to provide more impact and clarity to your music. You can set the effect to Low, High, or Off.
  • Live Simulation: You can simulate a live music venue with crowd cheers, clapping, and other effects. The virtual size of the venue can be selected to give you the ambience of a Cafe, Club, Open Air, or Concert Hall. The additional sound effects can be turned on or off with a toggle button.
  • Digital Time Alignment: For better imaging, you can apply digital time alignment to each of the speakers of your system. When the sound from the speakers reach your ears at the same time, you are placed in the "sweet spot", and the stereo imaging and sound staging are greatly improved. You can select a "listening" position, such as Front Left (driver), Front Right (passenger), Front (both seats), and others. The adjustment can be adjusted from 0 to 140" in 1" steps.

Speaker Settings: The DEQ-S1000A lets you choose a speaker setting to match the configuration of your speaker system. If you have the traditional front and rear speaker setup with (or without) a subwoofer, you can select the "Standard Mode" speaker setting. If you have a 3-way system (Low, Mid, High) in your car, you can select the "Network Mode" speaker setting. Depending upon the chosen setting, the processor allows you to set the appropriate crossovers for your speakers:

  • Standard Mode:
    • Front and Rear Speakers (independently adjusted):
      • Frequency (High Pass): 50Hz, 63Hz, 80Hz, 100Hz, 125Hz, 160Hz, 200Hz
      • Slope: 0dB (pass), -6dB/oct, -12dB/oct, -18dB/oct, -24dB/oct
    • Subwoofer:
      • Frequency (Low Pass): 50Hz, 63Hz, 80Hz, 100Hz, 125Hz, 160Hz, 200Hz
      • Slope: 0dB (pass), -6dB/oct, -12dB/oct, -18dB/oct, -24dB/oct
      • Gain: -24 to +10dB (1dB steps)
      • Phase: Normal / Reverse
    • Speaker Level: -24 to +10dB (1dB steps)
    • Time Alignment: 0" to 140" (1" steps)
  • Network Mode:
    • Highs (High Pass):
      • Frequency: 1.25kHz, 1.6kHz, 2kHz, 2.5kHz, 3.13kHz, 4kHz, 5kHz, 6.3kHz, 8kHz, 10kHz, 12.5kHz
      • Slope: -6dB/oct, -12dB/oct, -18dB/oct, or -24dB/oct
    • Mids (Low Pass):
      • Frequency: 1.25kHz, 1.6kHz, 2kHz, 2.5kHz, 3.13kHz, 4kHz, 5kHz, 6.3kHz, 8kHz, 10kHz, 12.5kHz
      • Slope: 0dB (pass), -6dB/oct, -12dB/oct, -18dB/oct, or -24dB/oct
    • Mids (High Pass):
      • Frequency: 25Hz, 31.5Hz, 40Hz, 50Hz, 63Hz, 80Hz, 100Hz, 125Hz, 160Hz, 200Hz, 250Hz
      • Slope: 0dB (pass), -6dB/oct, -12dB/oct, -18dB/oct, or -24dB/oct
    • Subwoofer (Low Pass):
      • Frequency: 25Hz, 31.5Hz, 40Hz, 50Hz, 63Hz, 80Hz, 100Hz, 125Hz, 160Hz, 200Hz, 250Hz
      • Slope: 0dB (pass), -6dB/oct, -12dB/oct, -18dB/oct, or -24dB/oct
      • Gain: -24 to +10dB (1dB steps)
      • Phase: Normal / Reverse
    • Speaker Level: -24 to +10dB (1dB steps)
    • Time Alignment: 0" to 140" (1" steps)

Built-in Amplifier: The DEQ-S1000A is equipped with a built-in MOSFET amplifier with the following power output specifications:

  • CEA 2006 Power Output (4Ω, ≤1% THD+N, S/N: 91dBA): 14 watts RMS x 4 channels
  • Continuous Power Output (50Hz to 15kHz, 5% THD, 4Ω, both channels driven): 22 watts RMS x 4
  • Max Power: 50 watts x 4 (50 watts x 2 at 4Ω+ 70 watts x 1 at 2Ω for Subwoofer)

Preamp Outputs: Three pairs of RCA preamp outputs are provided for sending the processed signal to a separate amp (or amps). The preouts are marked Subwoofer, Rear, and Front (for Standard Mode) and Subwoofer, Mid, and High (for Network Mode). Other specs for the preamp outputs include:

  • Output Level (Max): 4.0V
  • Impedance: 250Ω
  • Frequency Response: 10Hz to 20kHz (+0dB, -1dB)
  • S/N Ratio: 105dB
  • THD: 0.01%

Source Selection: The Pioneer DEQ-S1000A can be used with or without connecting a smartphone. If a smartphone is not connected, the unit outputs whatever sound source is selected on the head unit, and no audio adjustment is possible. When an iPhone or Android smartphone is connected, you can select the following "sources" using the included remote control:

  • Car Stereo Mode: The processor outputs the head unit's selected source by passing through the connected smartphone.
  • Smartphone Mode: The unit outputs the sound source of the smartphone.
  • Through Mode: The processor outputs the selected source of the car stereo without passing through the smartphone. Typically, this mode is used when the video and audio are out of sync during video playback in Car Stereo mode.
  • Mix Mode: In Mix Mode, the unit mixes and outputs the sound of the connected smartphone and the head unit. This mode lets you use the voice guidance of the car stereo/navigation system while listening to a source on the smartphone. The music source on the car stereo/navigation system should be turned off in this mode. This mode does not work with some head units.

Remote Control: A simple wireless remote control is included with the DEQ-S1000A. The remote lets you adjust the volume, mute the audio, select the source, control music playback (next track/previous track, play/pause), and change the connection mode (A or B). The A mode is for iPhone or the AOA (Android Open Accessory) connection for Android smartphones. The B mode is for the OTG (On the Go) connection for Android smartphones. The remote communicates via infrared, and comes with a remote sensor with a 79" cable that plugs into an input on the processor. Remote dimensions: 1.269"W x 2.664"H x 0.585"D.

Installation: The DEQ-S1000A can be connected to a factory OEM stereo or an aftermarket stereo. A plug-in wiring harness is provided with power (switched and constant), ground, turn-on, speaker input (2 channels), and speaker output wires (4 channels). If using with an aftermarket stereo with RCA outputs, you can use the preamp inputs instead of the speaker-level input. Your smartphone must be connected to the processor via a compatible USB cable. A 5' USB extension (Type A to Type A) provides extra length, if needed. A 5' parking brake cable is provided to lock out some of the functions of the Sound Tune app when the parking brake is not applied (or if the cable isn't connected). To enjoy the full functionality of the processor and app, adjustments should be made while the vehicle is parked with the parking brake applied. Two metal L-brackets are provided for mounting the processor in your vehicle.

Specifications:

  • Power Source: 14.4V DC (10.8V - 15.1V allowable); Negative grounding system
  • Max. Current Consumption: 9.2A (10A fuse installed)
  • Dimensions: Width 6.834" Height 1.567" Depth 4"
  • Weight: 1 pound 4.8 ounces

Our Product Research Team

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Customer Q&A

Crutchfield asked  
Why did you buy this?

based on the conversation with Drew about the JL TWK 88 I felt this product was just as good and less expensive [ michael  Feb 22, 2019 ]
amp and DSP why wouldnt you choose this? [ William  Feb 05, 2019 ]
I love this product [ Ronald  Jan 19, 2019 ]

3 questions already asked

Sorry, no. It does not. We have updated the information on our website to reflect this. Please accept our apologies for any confusion. [ Ryan  Jan 09, 2019 ]  Staff
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