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Alpine CDE-175BT

CD receiver

Item # 500CDE175B

Alpine's CDE-175BT CD receiver combines their long legacy of great sound with easy access to multiple sources to...

Read more from Crutchfield writer, Dave D.

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About the Alpine CDE-175BT

Merging great Alpine sound with lots of media

Alpine's CDE-175BT CD receiver combines their long legacy of great sound with easy access to multiple sources to make your longest journeys more fun. Its built-in Bluetooth lets you pair two phones simultaneously, so you and your copilot can take hands-free calls and stream music. Control your favorite Pandora® Internet radio stations using this stereo's controls. You can also add a SiriusXM tuner to enjoy satellite radio stations that never fade away. Alpine's famous Bass Engine circuitry kicks in some extra oomph, while a 3-band parametric equalizer will satisfy serious tweakers.

Merging great Alpine sound with lots of media

Alpine's CDE-175BT CD receiver combines their long legacy of great sound with easy access to multiple sources to make your longest journeys more fun. Its built-in Bluetooth lets you pair two phones simultaneously, so you and your copilot can take hands-free calls and stream music. Control your favorite Pandora® Internet radio stations using this stereo's controls. You can also add a SiriusXM tuner to enjoy satellite radio stations that never fade away. Alpine's famous Bass Engine circuitry kicks in some extra oomph, while a 3-band parametric equalizer will satisfy serious tweakers.

Bluetooth for multiple phones

For the times when you're sharing the ride, the CDE-175BT lets you pair two Bluetooth-equipped phones and quickly switch between them for hands-free calling. And don't forget, you can stream audio wirelessly from just about any music app. 

Choose your source

This receiver's front USB port makes charging and swapping out music sources a breeze. Plug in a flash drive that you've loaded up with FLAC, MP3, or WMA files, or connect your iPod® or iPhone® to listen to music. If you have a compatible Android, the Android Open Accessory protocol (AOA 2.0) delivers great sound and control over your stored music. You can also connect a portable MP3 player or other sound source to the front auxiliary input. Tired of local radio stations that fade away? Add a SiriusXM tuner to this receiver, subscribe to satellite radio, and tune in gobs of radio stations from coast to coast.

Make your music sound its best

If you're looking to add some punch to your tunes, press the Bass Engine SQ button for easy access to the receiver's extensive low-frequency controls. You can also refine your sound using the onboard 3-band parametric equalizer. And if you're adding amps or powered subwoofers to the system, the three sets of 5-volt preamp outputs provide ultra-clean signal for pure tonal quality.

Want to keep your steering wheel controls?

In most cars, you'll need an adapter to retain those controls with this car stereo. Connect a few wires, then program the adapter for your particular car and radio, and you'll retain the convenience of your steering wheel controls. You'll see the adapters that work with your vehicle when you add this receiver to your cart.

Bluetooth note: Use of this receiver's Bluetooth features will depend upon your phone's Bluetooth capabilities. Learn more in our article explaining Bluetooth profiles.

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Product highlights:

    General Features:
    • CD receiver with AM/FM tuner
    • plays FLAC files via USB
    • detachable face with variable color display
    Bluetooth Features:
    • hands-free calling and audio streaming
    • includes dual phone connection for iPhone and Android
    • Siri Eyes Free voice control with compatible iPhones
    Smartphone Features:
    • built in iPod, iPhone, and iPad controls
    • Pandora-ready for iPhone and Android
    • music file and streaming audio playback from select Android devices through USB input
    Audio Features:
    • plays CDs, CD-Rs, and CD-RWs, and USB memory devices
    • 3-band parametric EQ with 10 user presets
    • high-pass filters and subwoofer level controls
    Expandability:
    • compatible with SiriusXM tuner
    • inputs: front panel auxiliary and USB inputs
    • outputs: 6-channel preamp outputs (5-volt front, rear, subwoofer)
    Other Info:
    • compatible with most factory steering wheel audio controls (adapter required)
    • built-in MOSFET amplifier (18 watts RMS CTA-2006/50 peak x 4 channels)
    • warranty: 1 year
    • Our 60-day money-back guarantee
    • MFR # CDE-175BT
    KEEP READINGREAD LESS

    What's in the box:

    • CD receiver (10A fuse)
    • Face-plate
    • Sleeve (installed)
    • Trim ring (installed)
    • Wiring harness
    • Microphone w/ bracket (attached 11.5' cable terminated by a right-angle mono 3.5mm connector)
    • Two-sided tape
    • 4 ISO-screws (M5 x 8mm)
    • 2 Radio removal tools
    • Owner's Manual

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    Alpine CDE-175BT Reviews

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    More details on the Alpine CDE-175BT

    Features & specs

    Expandability
    AUX Input Front
    Audio/video Input ---
    USB Input Front
    Backup Camera Input No
    Second Camera Input No
    CarPlay No
    Android Auto No
    Siri Control Yes
    Android Control Yes
    Memory Card Slot USB memory
    Bluetooth Compatible Built-in
    Satellite Radio Ready SiriusXM
    HD Radio No
    Navigation ---
    iPod Compatibility
    Full size No
    Nano 7
    Touch 6/5
    iPhone X/8+/8/7+/7/6S+/6S/6+/6/5S/5C/
    General
    RMS Power (CTA-2006) 18 watts
    RMS Power (Manufacturer) 18 watts
    Peak Output 50 watts
    RMS Power Bandwidth 20-20kHz
    Preamp Outputs 6-channel
    Sub Preamp Outputs Yes
    Switchable Rear Preamp Outputs No
    Video Screen No
    Preamp Voltage 5 volts
    Screen Size ---
    Display Color Variable
    Key Button Color Variable
    EQ Bands 3
    Wireless Remote Optional
    Steering Wheel Control Compatible Adapter required
    Parts Warranty 1 Year
    Labor Warranty 1 Year
    Tuner
    FM Sensitivity 8 dBf
    European Tuning No
    Seek/Scan Seek
    Radio Data System Yes
    High-res Playback No

    Product Research

    Built-in Bluetooth
    Android/iPhone Integration
    Pandora+SiriusXM+AM/FM Radio
    Disc/USB/Aux Playback
    Audio Section
    Display Features
    Remote Control

    Built-in Bluetooth

    Bluetooth 3.0 The Alpine CDE-175BT features built-in Bluetooth 3.0 with support for hands-free communication and wireless music streaming. You'll be able to make and receive phone calls wirelessly through the receiver, as well as stream music wirelessly from your smartphone to the head unit. In order to use Bluetooth wireless technology, your phone must also be Bluetooth compatible and be able to interpret certain profiles. This unit is compatible with the following Bluetooth Profiles:

    • Hands-Free Communication: HFP 1.6 (Hands Free Profile), PBAB 1.0 (Phone Book Access Profile).
    • Audio Streaming: A2DP 1.3 (Advanced Audio Distribution Profile), AVRCP 1.3 (Audio/Video Remote Control Profile).
    Note: Due to the differences in Bluetooth technology, some Bluetooth enabled devices may be incompatible, function improperly, or may not support all features when used with the Alpine CDE-175BT.

    Multi-Device Pairing + Dual Phone Connection: You can pair up to three Bluetooth-enabled devices with the Alpine head unit. You are even able to keep two Bluetooth-enabled phones connected at the same time, so you can make and receive calls from either phone through the head unit. You can only stream music from one phone at a time; you will be able switch between the two phones front the head unit's rotary control dial. When a previous paired Bluetooth device is in close proximity to the receiver, the auto connection function automatically connects the two units.

    • Secure Simple Pairing (SSP): With Secure Simple Pairing (SSP), you can easily pair a Bluetooth enabled phone to the Alpine CDE-175BT without having to enter pin codes or go through complicated settings.
    • Auto Pairing (for iPhone): You can also pair your Apple iPhone (iOS 5.0+) by simply connecting it to the Alpine head unit via USB and following a single prompt on the head unit's display.

    Hands-Free Communication: The head unit supports Bluetooth hands-free communication for your Bluetooth enabled smartphone (including iPhone & Android). Thanks to the latest Hands-Free Profile (HFP 1.6) with wideband speech capability, the CDE-175BT provides more natural sound quality and details during wireless calls. The controls of the CDE-175BT can be used to dial a number, answer an in-coming call, or end a call. The unit also includes an external microphone, so you can carry on your side of the conversation while listening to the caller through your vehicles speakers. During a conversation, you can initiate a transfer of audio between your mobile phone and your car's speakers.

    • Receiving A Call: The Alpine CDE-175BT provides a couple ways to answer your phone calls without picking up your phone. Incoming calls are announced by a caller ring tone through your vehicle's speakers (music will be muted) & a Caller ID message across your Alpine head unit's display.
      • Manual Answer: Manually answer an incoming call by pressing the "Phone" button on your Alpine head unit.
      • Automatic Answer: Set the Alpine head unit to answer the incoming call automatically; when a call is received, it is answered automatically after approximately 3 or 10 seconds.
      • Call Waiting: If a second call is received during a current call, you can have the first caller wait momentarily while you take the second call. When you are finished with one call, you can switch to the other.
    • Making A Call: The Alpine CDE-175BT provides a variety of functions for placing a phone call without using your mobile phone. The Alpine CDE-175BT features full phone book access, call history, voice tag dialing, and redial with compatible phones.
      • Voice Dialing: If you have a voice-dial capable phone, you can dial a phone contact by simply speaking the name of your contact.
      • Phonebook (with ABC search): Up to 1,000 contacts (5 telephone numbers for each name) can be downloaded from your compatible mobile phone. You can select the first 3 call letters (ABC) to search for a desired name in your phonebook.
      • Call History: The previously dialed, received, or missed numbers (20 each) can be retrieved and dialed from memory.
      • Redial: You can easily redial the number or contact you dialed last from the head unit's front-panel controls.

    Wireless Audio Streaming: The Alpine CDE-175BT supports wireless music streaming (A2DP) and control (AVRCP) of a Bluetooth-enabled smartphone or audio player. You'll be able to wirelessly stream stored music, music apps, and other audio content from your Bluetooth source device to the Alpine head unit. The CDE-175BT will process your Bluetooth audio using its built-in DSP Sound Expansion to ensure you get the best sound.

    • SBC + AAC Codecs: In addition to support for the standard SBC Bluetooth audio codec, the CDE-175BT offers support of AAC.  By supporting AAC, the Alpine receiver offers better audio performance of the music streamed from your Apple iPod, iPhone, or iPad.
    • Playback Control: The CDE-175BT will be able to control basic playback functions such as Play/Pause, Previous/Next Track, Fast Forward/Rewind and Random/Repeat. Advanced music browsing (such as song/artist/album search) will still need to be done from your Bluetooth source device. 
    • Song/Artist Display: The head unit will also display your stored music and music app's song information; such as Artist name and Song/Album title (not compatible with all apps).
    • Volume Level: You can adjust the volume level of your connected Bluetooth devices from -6dB to + 6dB. This negates the need to adjust the volume level between sources each time.
    Note: When an incoming call or outgoing call is in progress from your Bluetooth enabled mobile phone, audio streaming will be paused so you can take your call. Once the call is finished, your streaming music will resume.

    Siri Eyes Free Control: When paired and connected to an iPhone with Siri via Bluetooth, the Alpine CDE-175BT has the ability to access Siri through its front-panel controls and external microphone. Simply press-and-hold down on the head unit's "Voice" button to engage Siri and use the included microphone to communicate with Siri. Siri's voice will heard through your vehicle's speakers. All Siri functions including hands-free calling, music search, setting reminders, text-messaging, audible navigation, and more can be done through the CDE-175BT and its microphone. You even can ask Siri to get directions to a destination and the turn-by-turn instructions will heard through your vehicle's speakers, while the on-screen map still displays on your iPhone with Siri. The head unit's audio is attenuated while Siri provides audible directions.

    Note: The head unit's display will only indicate hands-free calling and Bluetooth audio information (all other functions of Siri are only audible through the CDE-175BT; visual data will still need to be viewed from your iPhone device).

    External Mic: The included external microphone is tuned and engineered to reduce noise interference and feedback. This allows optimal placement in your car, for the best possible sound quality. The external microphone measures 0.5625" (diameter) x 1.5625" (deep); and features an attached 11.5' cable terminated by a right-angle mono-male 3.5mm connector.

    Android/iPhone Integration

    Android Direct Connect via USB: The Alpine CDE-175BT enables playback of stored music and music apps on select Android devices through its front-panel USB port. There are two types of modes (AOA 2.0 or MTP) to choose from based on your type of Android smartphone and what content you want to listen to.

    • AOA 2.0 (Stored Music & Music Apps): The CDE-175BT supports Android Open Accessory 2.0 (AOA 2.0), which lets you connect your Android smartphone (OS 4.1-7.1.2) to the CDE-175BT's front-panel USB port and listen to stored music and music apps from your Android device through the Alpine head unit. You'll be able to control basic playback functions, such as Play/Pause and Previous/Next Track. Other advanced music navigation will still be done from your Android smartphone's touchscreen. In this mode, the head unit will not display song/artist information; only "Android Mode" will show up on display. You'll continue to view song/artist information from the Android device's touchscreen. You'll still be able to access other functions and applications from your Android smartphone's touchscreen, while listening to music through the head unit. If you make a call or answer a call from your smartphone while listening to music in this mode, the music will pause until you are finished with the call and then start back up again.
    • MTP (Stored Music + Song/Artist Info): The CDE-175BT also supports MTP for playback & control of stored MP3/WMA music files on your Android (OS 4.0+) device through the Alpine receiver's front-panel USB port. In this mode, you get basic playback control (like Play/Pause & Previous/Next Track), plus song/artist information on the receiver's front-panel LCD. During MTP connection, you cannot use your Android smartphone's touchscreen to control music playback and you cannot select music apps from your smartphone for playback. However, you can continue to listen to stored music on your Android smartphone through the head unit while you check your Calendar, Facebook, Texts, etc on your phone.
    Note: You will need to setup Android connectivity within the head unit's menu. Select "MSC/MTP" for MTP playback and "Android" for AOA 2.0 playback.

    iPhone Direct Connection: The Alpine CDE-175BT's front-panel USB ports can be used to connect your Lightning Apple device or 30-pin iPhone 4S to the head unit. The USB connection allows for playback of stored music and music apps on your iPod or iPhone through Alpine receiver. If you have a newer iPod/iPhone with the Lightning-connector, you can use Alpines KCU-471i Lightning connector-to-USB cable (sold separately) or the Lightning-to-USB cable that came with your Apple device to connect your iPod/iPhone to the CDE-175BT. If you have an iPhone 4S with a 30-pin connector, you can use the 30-pin to USB cable that comes with your Apple device to connect your iPhone 4S to the Alpine CDE-175BT.

    • Basic Playback Control: You are able to control basic playback and search functions from the head unit, such as Play/Pause and Previous/Next Track. Advanced music browsing (such as song/artist/album search) will still need to be done from your Apple iPod or iPhone device's touchscreen.
    • Song/Artist/Album Display: The Alpine CD receiver will display your iPod/iPhone's music file information. The CDE-175BT will display artist name, song title, and album label.

    Apple Device Compatibility Chart: The Alpine CDE-175BT is "Made for iPod/iPhone" compatible and supports the following iPod/iPhone model features (as of 8/2/2018):

    Apple Device Generation Tested Version Media Type Control Type Display Type Bluetooth Charge
    Audio Video Head Unit iPod/iPhone Pandora Artist/Song Text Track Info Phone Audio Siri
    iPhone
    4S 9.3.5 Y N Y Y N Y Y Y Y Y Y
    5/5C 10.3.3 Y N Y Y Y Y Y Y Y Y Y
    5S 11.4.1 Y N Y Y Y Y Y Y Y Y Y
    SE 11.4.1 Y N Y Y Y Y Y Y Y Y Y
    6/6/+6S/6S+ 11.4.1 Y N Y Y Y Y Y Y Y Y Y
    7/7+ 11.4.1 Y N Y Y Y Y Y Y Y Y Y
    8/8+ 11.4.1 Y N Y Y Y Y Y Y Y Y Y
    X 11.4.1 Y N Y Y Y Y Y Y Y Y Y
    touch
    5th 9.3.5 Y N Y Y Y Y Y N Y Y Y
    6th 11.4.1 Y N Y Y Y Y Y N Y Y Y
    nano
    7th 1.02PC Y N Y N N Y Y N Y N Y
    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.

    Smartphone Charging: The head unit's USB connection provides 1A of current to power and charge your connected Apple iPod/iPhone or Android smartphone when your vehicle's ignition switch is set to the 'ACC' or 'On' position (if your iPod/iPhone has no initial battery charge, then the unit will not recognize it).

    Pandora+SiriusXM+AM/FM Radio

    Pandora Internet Radio App: The free Pandora App (for Apple iOS 10.0+ and Android OS 4.0+) lets you play music from the Pandora music service through the Alpine CDE-175BT using your Bluetooth connected Apple iPhone or Android smartphone. Your iPhone or Android smartphone must support A2DP/AVRCP/SPP Bluetooth profiles and be paired with the Alpine receiver. Your iPhone or Android smartphone will also need an active Data Plan account with connection to the Internet via 3G, EDGE, LTE (4G) or WiFi. The CDE-175BT provides control over the Pandora music service and displays Artist, Album, and Song information.

    • Station List: You can select Pandora stations from your Station List by date or alphabetically.
    • Skip Songs: You can skip song tracks within a station. You cannot skip back to a previous song. Pandora limits the number of skips allowed.
    • Thumbs Up/Down: You can give songs a thumbs up or thumbs down to help Pandora personalize stations to suit your preferences.
    • Bookmarking: The song or artist currently being played can be bookmarked & stored in your Pandora account.
    Note: Access to these online service will depend on the availability of a cellular and/or WiFi network for purposes of allowing your iPhone or smartphone to connect to the Internet. Pandora is not supported in Canada and only available in the United States.

    SiriusXM Ready: The Alpine CDE-175BT is SiriusXM-Ready and compatible with the SiriusXM Connect Vehicle Tuner (220SXV300, sold separately). The SiriusXM Connect Vehicle Tuner supports SiriusXM programming with access to 140+ SiriusXM channels via subscription; check out the most popular SiriusXM subscription packages here. Additional features of the SiriusXM Connect tuner include:

    • Channel List + Song/Artist Info: A channel list displays a list of all available channels. Displayed Information such as Channel Name, Artist Name, & Song Title can be viewed on the head unit's front-panel LCD.
    • Category Search & Presets: The Category Search function searches for channels in a certain category. Up to 18 SiriusXM Satellite Radio station presets can be saved for easier access.
    • Parental Lock: This function restricts the listening of channels for children of certain age levels and is protected by a 4-digit "lock-code".
    Note: SiriusXM Satellite Radio operates on the XM Network. However, you can easily add this SiriusXM tuner to an existing Sirius or XM account for a Multi-Radio Discount Plan.

    RDS AM/FM Tuner: The Alpine CDE-175BT features a built-in AM/FM tuner with manual, seek, and preset tuning. The built-in tuner provides 18 FM and 12 AM preset stations. The Radio Data System (RDS) feature displays radio broadcast information such as artist & track information when listening to compatible AM/FM stations.

    Disc/USB/Aux Playback

    Disc Compatibility: The unit features a single disc player that will playback CD-Audio and finalized CD-R/CD-RW audio discs. The unit also supports playback of MP3, WMA, and AAC music files loaded onto CD-R/RW discs.

    • Off Insert/Eject: A CD disc can be inserted or ejected with the power off. When a disc is inserted with the power off, the unit will automatically power up and begin playback.
    • Auto Reload: When a CD is ejected and left sticking out of the CD slot for 20 seconds, the unit automatically reloads the CD to protect if from damage.
    • Angle Mounting: For proper CD playback, Alpine recommends mounting the CDE-175BT no more that 35° above horizontal.

    USB MSC Compatibility: In addition to iPhone & Android connectivity, the Alpine head unit's front-panel USB port enables connection of a portable USB mass-storage class (MSC) device, such as a USB thumbdrive or portable digital audio player. The USB port supports audio playback and control of MP3, WMA, AAC, & FLAC audio files stored on a compatible USB mass-storage class device. USB portable audio players that can be charged via USB will be charged when plugged into the CD receiver's USB port (max. 1A), and the vehicle's ignition switch is set to ACC or On.

    Note: The head unit's USB port is not compatible with USB hubs or card readers.

    Compatible Music Files: The Alpine CDE-175BT supports the following types of MP3, WMA, AAC, & FLAC music files recorded onto CD-R/RW disc or loaded onto a USB mass storage class device.

    Media Type CD-R/RW USB MSC
    File System ISO 9660 Level 1/2, Joliet, Romeo FAT 16/32
    Playable File Types  MP3: bit rate of 8-320 kbps w/ sampling frequency of 16-48 kHz
    WMA:
    bit rate of 32-192 kbps w/ sampling frequency of 32, 44.1, 48 kHz
    AAC:  bit rate of 8-320 kbps w/ sampling frequency of 11.025-48 kHz
    MP3: bit rate of 8-320 kbps w/ sampling frequency of 16-48 kHz
    WMA:
    bit rate of 32-192 kbps w/ sampling frequency of 32, 44.1, 48 kHz
    AAC:  bit rate of 8-320 kbps w/ sampling frequency of 11.025-48 kHz
    FLAC: bit depth of 16 or 24-bit w/ sampling frequency of 44.1 or 48 kHz
    Maximum # of Folders/Files 150 folders/300 files 256 folder/256 files per folder
    Tags ID3,WMA, AAC, FLAC tags

    Music Browsing: When you are playing a disc or USB device with ID3, WMA or AAC tags, you can easily search for a track, file, or folder by its title. Once you have activated the search mode, you can use the rotary encoder to quickly scan through the titles to locate the desired track. For discs and USB devices without ID3, WMA, or AAC tags; searches are made using the track numbers associated with each song. You can even use Jump mode to quickly search your music list in 10% increments.

    Playback Modes: The Alpine CDE-175BT offers Repeat and Random playback modes for both disc and USB playback. Repeat modes include All, Track, and Album. Random modes include Album, Device/Disc, or Off.

    Auxiliary Input: The unit is equipped with front-panel minijack (3.5mm) auxiliary input, so you input audio from an auxiliary source unit; such as a portable MP3 player. You can adjust the volume level of your connected Aux device from -8dB to +18dB, negating the need to adjust the volume level between sources each time.

    Audio Section

    24-Bit D/A Converter: The Alpine CDE-175BT uses a 24-bit D/A converter for superb sound quality and playback of your music.

    CTA-2006 Compliant: The specifications given by Alpine for the built-in amplifier comply with the CTA-2006 mobile amplifier power testing and measurement standards from the CTA (Consumer Technology Association). All manufacturers who comply with the standard can display the CTA-2006 logo on their product.

    • CTA-2006 Power Rating: 18 watts x 4 channels (at 4 ohms, 20-20kHz, 1% THD)
    • Max Power Output: 50 watts x 4 channels
    Note: Add the KTP-445 (500KTP445A, sold separately) Head Unit Power Pack to deliver 45 watts x 4-channel RMS of power. The KTP-445 is compact enough to install behind the Alpine CD receiver. It plugs in-line with the head unit's wiring harness, so you don't even need additional wires.

    6ch/5V Pre-outs + Sub Control: The CDE-175BT has three sets of 5.0-volt pre-outs (Front/Rear/Sub) for connection of external amplifiers. The unit's front & rear preamp output can be faded, while the subwoofer preamp output is non-fading. When the non-fading subwoofer pre-out is activated, you can adjust the subwoofer's volume level (0 to +15) & phase (Normal or Reverse).

    High-Pass & Low-Pass Crossover:  The Alpine head unit is equipped with a high-pass crossover for its front and rear speaker-level and preamp outputs. You can set the unit's high-pass filter to 80Hz, 100Hz, 120Hz, or Off (full-range) The unit is also equipped with a low-pass crossover for the subwoofer preamp output that can be set to 80Hz, 100Hz, 120Hz, or Off (full-range).

    Equalizer: You can select from 11 different EQ presets to get the best sound from all your sources. You can choose from Flat (off), Pops, Rock, News, Jazz, Electric Dance, Hip-Hop, Easy Listening, Country, Classical, or User. The User Preset activates the head unit's 3-Band Equalizer for a better sound response curve. Bass, Mid, & Treble can be adjusted with the 3-Band EQ.

    3-Band EQ
    Frequency Q-Factor Level
    Bass 60Hz, 80Hz, 100Hz, or 120Hz Wide 0.5, Medium 1.0, Medium 1.5, or Narrow. 2.0 -7 to +7 (+/-14dB in 2dB steps)
    Midrange 500Hz, 1.0kHz, 1.5kHz, or 2.5kHz Wide 0.75, Medium 1.0, Medium 1.25, or Narrow 1.5 -7 to +7 (+/-14dB in 2dB steps)
    Treble 7.5kHz, 10kHz, 12.5kHz, or 15kHz Wide 0.75 or Narrow 1.25 -7 to +7 (+/-14dB in 2dB steps)
    Note: The units stores independent EQ settings for each audio source.

    Bass Engine SQ: Bass Engine SQ creates the ideal Bass impact for your music by automatically adjust the Bass, Mid, Treble, and Subwoofer level.  You can adjust the effect level (0-6) of the Bass Engine SQ.

    Beep Tone: This function will give audible feedback with varying tones depending upon the button pressed. The Beep Tone can be turned On or Off.

    Display Features

    Detachable Face w/ Caution Alarm: The head unit's face-plate is detachable to deter theft (no face case provided). An optional soft face case (142DFC1X, sold separately) can be purchased for this unit. If you turn your vehicle's ignition switch to the "Off" position without detaching the face-plate, the caution alarm will sound for a few seconds to remind you to detach the face-plate. The alarm will only sound if the receiver's built-in amplifier is used.

    Single-Line, High-Contrast LCD: The single-line, high-contrast LCD has 5x the contrast of a conventional screen, so the display is always easy to read. The LCD lets you view AM/FM stations and song/artist/album info from USB, iPhone, & Bluetooth sources. This unit can even scroll the text information. There are two Text Scroll settings - On (the information of folder and file names, and the tags are scrolled automatically) or Off (the display is scrolled when a when a track is changed).

    Variable Color Illumination: The Alpine CDE-175BT features variable color display and button illumination. You can choose from one of 10 preset colors (White, Rose, Pink, Purple, Blue, Cyan, Green, Yellow, Amber, Red) or customize your own color (RGB; 0-32). The custom setting allows you to individually adjust the intensity of Red, Green, and Blue (from 0-60) to better match your vehicle's interior lights. The same color setting can be applied to both the display and buttons, or you can choose a different color for each.

    Brightness & Auto Dimmer: You can adjust the brightness of the Alpine receiver's display from 1 to 10. This unit is also equipped with an illumination lead (orange); when the unit's dimmer mode is set to Auto and the illumination lead is connected to your vehicle's headlight circuit, the display and button illumination will dim to the preset Brightness level whenever the headlights are turned on. If preferred, you may choose the Manual dimmer mode setting, so the display and button illumination is dim at all times.

    Black Out & Auto Off: If no operation is performed for a while the Black Out feature (when activated) will automatically turn the head unit's display off automatically. When installing in a vehicle without an accessory power wire at the radio location, you can set the unit to turn off all lighting after 30 minutes of the power being turned off to the head unit.

    Demo Mode: This unit has a demonstration feature for its display which can be turned On or Off in the menu.

    Remote Control

    Steering Wheel Remote Compatibility: The head unit features an OEM steering wheel remote control input on the rear of the unit that lets you keep your vehicle's factory radio steering wheel remote controls when used with an optional steering wheel audio control adapter (sold separately).

    Optional Wireless Remote: The Alpine CDE-175BT is wireless remote control ready. Simply add on the Alpine RUE-4202 IR remote (sold separately) to make it even easier to control the head unit's functions.

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    Customer Q&A

    Q
    Crutchfield asked: Why did you buy this?
    A
    I like alpine audio the sound is amazing [ EDGAR  Mar 20, 2019 ]
    A
    It's what I came here for. I am tired of using an auxiliary cord on the factory crap radio and wanted something that would connect via bluetooth. [ Thomas  Mar 14, 2019 ]
    A
    I like alpine product [ Ezzell fleet  Jan 25, 2019 ]
    A
    Great stereo for price [ Rodney  Jan 22, 2019 ]
    A
    Recommended by car builder [ Carl  Dec 05, 2018 ]
    A
    dual phone bluetooth [ J  Oct 27, 2018 ]
    A
    Will only ever buy Alpine head units. Has good media options, iPhone connectivity. And the tuning app is a really nice touch. [ Stephen  Oct 22, 2018 ]
    A
    Has the imputs I want [ Robert  Oct 15, 2018 ]
    A
    Heard it a good solid platform that has 5v pre amps.... Going to a Class A competition Precision Power amp... [ Anthony  Sep 21, 2018 ]
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    3 questions already asked

    Q
    Can this unit be operated by an Alpine Remote?
    [ Brian  Mar 17, 2019 ]
    3 answers
    A
    I can only tell you it will not work with the RF remote.
    [ Gerald  Mar 22, 2019 ]
    A
    Yes but you have to order emote separately I believe.
    [ sean  Mar 22, 2019 ]
    A
    This unit doesn't come with a remote. And I don't know if it works with alpine remote because I don't have one.
    [ jack  Mar 17, 2019 ]
    Q
    can you recommend a decent 6x9 speaker to match this head unit ? preferably alpine.
    [ mike  Nov 30, 2018 ]
    3 answers
    A
    My car has Bose factory speakers which sound great with the Alpine unit. My other vehicle I used Alpine speakers with an amp I already had and they sound awesome also. I plan on using Infinity speakers with this same unit in a truck I'm restoring. Have been very satisfied with Infinity speakers in the past.
    [ Thomas  Dec 01, 2018 ]
    A
    Sorry mike d I've got mine in my wrangler. For what it's worth, Infinity speakers sound great
    [ Patrick  Dec 01, 2018 ]
    A
    Type r but any alpine 6x9 would be good Depends on your budget.
    [ LUIS  Nov 30, 2018 ]
    Q
    How bright is the display compared to the 149bt?
    [ Will  Aug 25, 2018 ]
    2 answers
    A
    It's bright to the sun.
    [ jack  Mar 17, 2019 ]
    A
    pretty much the same.
    [ David  Aug 29, 2018 ]

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