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KW-X840BTS Double-Din CD Receiver featuring Bluetooth

KW-X840BTS Double-Din CD Receiver featuring Bluetooth


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JVC Kenwood has been a powerhouse ever since they merged several years ago. JVC’s current product line includes a number of highly sought-after features that have never been available before. With such a broad selection of Headunits, you’re sure to find a fantastic Kenwood radio that meets and exceeds your expectations.

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Big features and bold style

With JVC’s KW-X840BTS digital media receiver in your dash, you have options, and lots of them. You’ll get built-in Bluetooth® connectivity, a USB port, and an aux input, plus you can use a compatible iPhone® or Android™ phone to control whatever the receiver’s doing. And if you’re a big-time Amazon Alexa user, you’ll be able to call on your favorite voice-controlled assistant in the car. You can even add a satellite radio tuner (sold separately) and expand your entertainment horizons even more.

Built-in Amazon Alexa

After you load the Alexa app onto your phone and pair your phone to this JVC receiver, simply press the dedicated “Alexa” button on the faceplate, and you can access music, audiobooks, news, weather, traffic, and smart home controls using your voice.

Great Android compatibility

JVC’s remote control app lets you use your compatible Android phone’s touchscreen to control your music. With your Android phone safely attached to a mount, you can reach down and skip a track without taking your eyes off the road. Android users can access Pandora® and Spotify® through the Bluetooth connection — no wires needed. You can control your favorite stations using your voice, your phone, or the receiver itself.

Get the most from your iPhone

The KW-X840BTS gives you control over your iPhone with a wired connection so you can navigate your stored music with ease.

Go hands-free with Bluetooth

Automatic pairing makes it a lot easier to enjoy hands-free calling and wireless audio streaming, no matter what kind of phone you’re using. You can also pair two phones at once, so you don’t have to choose between the personal phone and the work phone when you’re driving.


Add on satellite radio

Start enjoying the wide variety of music, sports, news, and entertainment by adding an optional SiriusXM® tuner (sold separately) to your KW-X840BTS. With coast to coast coverage, you’ll never have to stop enjoying your favorite channels.

Colorful choices

The KW-X840BTS plays MP3, WMA, AAC, WAV, and even high-resolution FLAC files, and you’ll find a wide array of sound-shaping tools, including Space Enhancement to match the sound to the size of your car, and a 13-band graphic equalizer. The variable-color display lets you choose the look you like, and you can assign different colors to two zones.

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.


Product highlights:

General Features:
  • digital media receiver with AM/FM tuner (does not play CDs)
  • built-in Bluetooth for audio streaming and hands-free calling (mic included)
    • full-time Bluetooth connection for two phones
  • use JVC’s remote control app to control the receiver with your phone
  • 1.5-line display
  • plays MP3, WMA, AAC, WAV, and FLAC files through USB
  • menus can be displayed in English and Spanish
  • 2-zone variable color button illumination with 2-line display
Smartphone Features:
  • built-in iPhone control
  • built-in Amazon Alexa
  • Siri Eyes-Free-Mode for iPhone
  • control PANDORA and Spotify from select smartphones
  • Android app for gesture control over playback
Audio Features:
  • 24-bit digital-to-analog converter
  • high-and low-pass filters
  • sound-shaping tools get more out of your music files
  • JVC Streaming DJ lets you pair up to 5 smartphones via Bluetooth for music playback
  • 13-band EQ and time alignment
  • Volume Link EQ boosts specific frequencies to compensate for road noise
  • K2 technology improves the sound of all music sources
  • compatible with SiriusXM satellite radio tuner (sold separately, subscription required)
  • inputs: front USB port (1.5A), front auxiliary input
  • outputs: 6-channel preamp outputs (2.5-volt front, rear, sub)
Other Info:
  • built-in amplifier (22 watts RMS/50 peak x 4 channels)
  • compatible with most factory steering wheel audio controls (adapter required)
  • front USB 1.5A connection charges devices quickly
  • warranty: 2 years (1 year for Canada)
  • Our 60-day money-back guarantee
  • MFR # KW-X840BTS


AUX Input Front
Audio/video Input
USB Input Front
USB Port Power 1.5A
Backup Camera Input No
Second Camera Input No
CarPlay No
Android Auto No
Siri Control Yes
Alexa Voice Control Y
Android Control Yes
Memory Card Slot USB memory
Bluetooth Compatible Built-in
Satellite Radio Ready SiriusXM 2.0
HD Radio No
iPod Compatibility
Full size No
Nano No
Touch 6 and newer
iPhone 5S and newer
RMS Power (CTA-2006) N/A
RMS Power (Manufacturer) 22 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
Navigation App Compatible (iOS)
Navigation App Compatible (Android)
Preamp Voltage 2.5 volts
Screen Size
Display Color White
Key Button Color Variable
EQ Bands 13
Wireless Remote Optional
Steering Wheel Control Compatible Adapter required
Parts Warranty 1 Year
Labor Warranty 1 Year
FM Sensitivity 8.2 dBf
European Tuning Yes
Seek/Scan Seek
Radio Data System Yes
File Playback
Music File Playback MP3,WMA,AAC,WAV,FLAC
High-res Playback FLAC (96kHz)
Second Camera Input Lane Watch N


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Additional information


Media Playback

CD, Digital Media

Key Features

Aux Input, Bluetooth, SiriusXM Compatible, Steer Wheel Compatible

RCA Preamp Voltage

2 volts- 3 volts

RCA Preamp Channels

Stereo Size

USB Inputs

USB Front