United Kingdom

KDC-BT31U

KDC-BT31U

MP3/WMA/AAC/CD/USB-Receiver with AUX Input and Bluetooth built-in

  • Detachable Faceplate
  • Hands Free Profile (HPF)
  • AM (MW/LW) Reception
  • Radio Data System
  • OEM Wired Remote Control ready

Key Features

MP3, WMA, AAC playback
Illuminated front AUX & USB terminal with slide protection cover
Bluetooth handsfree built-in
Orignial steeringwheel remote controle interface terminal
RDS with radio text
Compatible with Kenwood Music Editor lite

General Features

DIN Size1 DIN
Detachable FaceplateYes
Protection Case For FaceplateYes, soft case
Faceplate MechanismFull Detachable Faceplate
Key IlluminationRed
Rotary Encoder & Control KnobYes
Music Search functionYes
Accent key(telephone key)
Digital Clock (24H)Yes
All-off Select (20/40/60 minutes)Yes
Built-in ConnectorMolex 16 pin
ISO connectorYes
USB interface x 1Yes, Front

Display Features

Display TypeFluorescent (FL) Tube Display
Display Layout13 segments x 11 Characters
Display IlluminationFlouricent (FL)
Dimmer Control2 steps - Manual
Demo ModeYes
Special Character DisplayRussian Characters

Cosmetics features

Front/edgePiano black
Dress platePiano Black
Preset key finishPiano Black
Escutcheon finishBlack Injection
Volume & operation knob or wheelblack injection
Volume & operation knob illuminationRed
Triangle IlluminationRed
Key illuminationRed



USB Features

USB terminalYes, Front
USB TypeUSB1.1 / USB 2.0
Kenwood Music Editor Lite CompatibleYes, (download from site)
MP3 playback with ID3 Tag DisplayYes
WMA (Windows Media File) playbackYes
AAC (Advanced Audio Codec) playbackYes
Repeat/Scan/Random searchYes

Audio Features

Maximum Output Power50W x 4
MOSFET Power ICYes
Auxiliary inputYes, front
Auxiliary TypeMini-jack
Pre-out1 RCA
Pre-out Output Level2V
Preout Rear / Subwoofer SwitchableYes
Subwoofer Reference Level Adj.Yes
Source Tone Control & MemoryBass / Mid / Treble
Balance/Fader ControlYes
Bass Boost Circuit
System Q_EX (Preset & Manual Sound Control)Yes
Low-pass FilterYes

Bluetooth General Features

Hands Free Profile (HPF)
Serial Port Profile (SPP)Yes
Headset Profile (HSP)Yes
Phonebook Access Profile (PBAP)Yes
Object Push Profile (OPP)Yes
Synchronization Profile (SYNC)Yes
Easy pairing functionYes
Phone device status displayYes
Signal strength displayYes
Remaining battery displayYes
Bluetooth phones to register5
High-quality noise canceling microphonebuilt-in
Bluetooth firmware upgradeableYes
* depends on phone model/make& Kenwood unit


Tuner Specifications

FM Frequency range (50kHz step)87.5MHz ~ 108MHz
FM Usable Sensitivity1μV/75ohm (S/N 26dBf)
FM Quieting Sensitivity2.5μV/75ohm (S/N 46dBf)
FM Signal to noise ratio (Mono)63dB
FM Stereo Separation (1kHz)40dB
MW Frequency Range531kHz ~ 1611kHz (9kHz step)
MW Frequency step9kHz
MW Usable Sensitivity36μV
LW Frequency Range153kHz ~ 279kHz (9kHz step)
LW Usable Sensitivity57μV

CD Specifications

Laser DiodeGaAlAs
Digital Filter(D/A)8 Times Over Sampling
Digital/Analogue Converter24 Bit
Wow & Flutterbelow measurable limit
Frequency Response20Hz ~ 20kHz (±1dB)
Total Harmonic Distortion0.01% (1kHz)
Signal to Noise Ratio105dB (1kHz)
Dynamic Range90dB
Channel Separation85dB
MP3 DecoderCompliant with MPEG-1/2 Audio Layer-3
WMA DecoderCompliant with Windows Media Audio
AAC DecoderAAC-LC ".m4a" files

USB Specifications

USB Version compatibility1.1 / 2.0
File SystemFAT 16/32
Maximum Supply current500mA
MP3 DecodeCompliant with MPEG-1/2 Audio Layer-3
WMA DecodeCompliant with Windows Media Audio
AAC DecodeAAC-LC "m4a" Files

Audio Specifications

Maximum Power50W x 4
Output Power (DIN45324,+B=14.4v)30W x 4
Preout Level2000mV / 10kOhm,
Preout Impedance≤ 600Ohm
Speaker Impedance4Ohm ~ 8Ohm
AUX Frequency Response20Hz ~ 20kHz (±1dB)
AUX Maximum Input Voltage1200mV
AUX Input Impedance10kOhm
Bass Tone Control100Hz ±8dB
Middle Tone Control1kHz ±8dB
Treble Tone Control10kHz ±8dB

General Specifications

Operating voltage14.4V (11 ~ 16V Allowable)
Maximum Current Consumption10A
Dimensions (WxHxD)182 x 53 x 158mm
Weight1300 gr.
Instruction ManualsENG/FRE/GER/DUT/ITA/SPA/POR