JVC KW-X840BTS 2-Din Digital Media Receiver featuring Bluetooth Black

JVC KW-X840BTS 2-Din Digital Media Receiver featuring Bluetooth Black

Model Number: KW-X840BTS
Web Code: 14396267
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JVC KW-X840BTS 2-Din Digital Media Receiver featuring Bluetooth Black


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What's included:

  • ● JVC KW-X840BTS Double-DIN Bluetooth Digital Media Receiver● Hardware● Owner's Manual

Amazon Alexa Compatible (New!) You can talk to Amazon Alexa on your JVC receiver. With built-in Alexa, you can request to play music, make calls, listen to audiobooks, hear news, check the weather, control smart home devices, get directions, find parking, etc., while keeping hands on the wheel and eyes on the road.

Streaming and audio control (A2DP, AVRCP) Thanks to the integrated Bluetooth audio, you can listen to and control the songs stored on your iPhone or Android smartphone, all wirelessly. Very high quality playback can also be achieved with FLAC compatibility which allows digital audio to be compressed in a lossless format. In addition to the repeated and random playback of music files, you can also easily search for songs using the navigation function. Find and choose the song you want to hear from the folder name and song name lists.

Permanent connection to 2 phones You can connect two full-time phones via Bluetooth, with simple and secure pairing. Calls to either phone can be received by pressing any key on the receiver.

Lighting with 2 variable colors You can mix the lighting of the front panel into 2 distinct color zones. 50 predefined patterns (49 colors + 1 user color preset) are available for easy customization. In addition, manual adjustment is possible to adjust each RGB color in 32 steps, providing a total of 32,768 different colors for each area, 1 and 2, depending on your preferences. You can even enjoy moving lighting, selectable from 10 color animation models

K2 technology for improved digital sound quality

K2 is an original JVC technology that reproduces the original main sound by widening the frequency range. For example, K2 will extend the digital data of the audio CD recorded at 44.1 kHz / 16 bit to 96 kHz / 24 bit. It is also possible to recreate the range of high frequencies above 20 kHz which is cut off during CD formatting.


Display type: 2-line VA LCD screen

LCD color: white

Key color: Variable color

Musical synchronization. Effect: Yes

Compatible with display of Spanish text: Yes

Compatible with the display of French text: Yes (Canadian French)

Automatic dimmer: Yes

Brightness adjustment: Yes

Multimedia playback

MP3 compatible with Tag: USB

WMA compatible with Tag: USB

WAV compatible with Tag: USB

AAC compatible with Tag: USB

FLAC compatible with Tag: USB (up to 96 kHz / 24 bit)

Bluetooth control

Integrated Bluetooth: Yes (Ver 4.2, wired microphone included)

Hands-free calling: Yes (HFP 1.7 broadband voice)

Permanent connection to 2 phones: Yes

Audio streaming and control (A2DP, AVRCP): Yes

Supported audio formats: AAC / SBC

5 BT-Audio connection [JVC Streaming DJ]: Yes

Voice dialing (a mobile phone compatible with voice recognition is required): Yes

Telephone directory access profile (PBAP): Yes

Automatic iPhone and Android pairing: Yes (iPhone only)

Low battery information: Yes

Android control

Android music playback: Yes (via Bluetooth (R))

Spotify control: Yes (via Bluetooth (R))

Pandora Control (Available in countries that support this service.): Yes (via Bluetooth (R))

IPod / iPhone control

IPod / iPhone music playback: Yes (via USB or Bluetooth (R))

Spotify control: Yes (via USB or Bluetooth (R))

Pandora Control (Available in countries that support this service.): Yes (via USB or Bluetooth (R))

Amazon Alexa

Compatible with Amazon Alexa: Yes


Position: Front

USB power supply: Yes (1.5 A)

Drive change mode for mass storage class: Yes

Inputs and outputs

AUX input: 1 (front)

Line output terminals (pair): 3 pairs (front + rear + subwoofer)

Pre-output level: 2.5 V

Subwoofer output with level / frequency control: Yes (level -50 to +10)

Subwoofer output level: 2.5 V


Ready for SiriusXM: Yes

Radio data broadcasting system (RBDS): Yes

Preset stations: 18FM + 6AM

Strong station memory (for FM): Yes

Radio Timer: Yes (once / daily / weekly)

Preset tuner memory (for power disconnection): Yes


Frequency range: 87.9 - 107.9 MHz (200 kHz)


Frequency range: 530 to 1,700 kHz (10 kHz)


Maximum output power: 50W x 4 / 50W x 2 + Subwoofer (4 ohms) 50W x 1

Full bandwidth power (less than 1% THD): 22W x 4

Direct subwoofer connection (Mono Lch): Yes

EQ: Yes (13-band graphic equalizer)

Preset equalizer: Yes (11 presets)

Bass boost: Yes

Volume control: Yes

High pass filter / low pass filter: Yes / Yes

K2 Technology: Yes

Time alignment: Yes

Space improvement: Yes

Audible response: Yes

Sound Lift: Yes

Volume Link Equalizer: Yes


Shallow chassis: Yes

Wireless Remote Control: Ready (RM-RK52 required - Not Included)

Ready for steering wheel remote control: Yes

Remote control application: Yes

Dimensions (WXHXD)

Installation size: 7-1 / 16 "x 3-15 / 16" x 3-15 / 16 "(178 x 100 x 100 mm)

Weight: 1.8 lbs (0.8 kg)

Unit weight in individual packaging: 2.5 lb (1.1 kg)

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