Kenwood KDC-BT640U - Bluetooth CD MP3 USB FLAC Car Radio Stereo Alexa App Compatible

Key Features

• Bluetooth handsfree & audio streaming built-in
• MP3/WMA/AAC/WAV/FLAC playback
• DSP, DTA & 13-band EQ built-in
• KENWOOD Remote app ready
• KENWOOD Music Mix app ready
• Amazon Alexa ready
• 13 digits, 1,5 Line Wide LCD Display
• Variable Colour Illumination
• English/Russian/Spanish/French&German GUI language
• 2 RCA (front + rear/sub) Preouts (2,5V)

General Features

• DIN Size          1 DIN
• Detachable Faceplate          
• Key Illumination       Variable LED
• Rotary Encoder & Control Knob     
• Dual Accent Key        Handsfree & Voice Assistant
• Back-up Memory       Tuner presets & menu settings
• Attenuator with Smooth Volume Return   
• Touch Sensor Tone  
• Digital Clock (24H)  
• Clock display when power-off         default off
• All-off Select (20/40/60 minutes)
• Built-in Connector     Mitsumi, 16 pin
• ISO connector            , Mitsumi to ISO cable
• Bluetooth unit built-in         
• USB interface x 1      , (Front)
• Firmware upgradable         

Display Features

• Display Type  Liquid Crystal Display (LCD)
• Display Layout           2 line text + custom icons
• Vertical Aligment Liquid Crystal Display   
• Display Illumination Variable by RGB LED
• Dimmer Control        Manual / Set by Timer
• Brightness control     0 - 31 steps
• Demo Mode  
• Menu text in selectable language   English(default) / Spanish / French / German / Russian

Cosmetics Features

• Dress plate     Piano Black
• Preset key finish       Piano Black
• Escutcheon finish      Piano Black
• Volume & operation knob or wheel            Transparant Lighting & Chrome Finished Ring
• Triangle Illumination            Red LED
• Front terminals dust cover 
• Key illumination        Variable by RGB LED
• Illuminated front USB port  Variable by RGB LED
• Brightness Control (Key)     0 - 31 step
• Dimmer Control (Key)         Manual / Set by Timer
• Variable color illumination  
• Color Zone Concept   2 zone colour control
• Brightness zone concept      2 zone brightness control
• Chrome-finished accents     Volume knob & faceplate

Tuner Features

• Station Select Manual / Preset
• FM Reception
• AM (MW/LW) Reception    
• Tuner Presets (FM/AM)      24 Presets (18FM / 6AM)
• Preset memory w/o back-up power          
• Mixed preset memory (FM & AM)  6 presets
• Up/Down Seek/Scan           
• Automatic Memory Entry (AME)   
• FM Stereo / Mono Selector 
• Radio Data System   
• Radio Text Plus        
• Traffic Information  
• Local search  
• AF Regional    Selectable: AF/AF Reg/OFF
• Auto TP search         
• Enhanced Other Networks Function (EON)         
• Program Type Function (PTY)       

CE_Playable Audio file

• AAC (*.m4a) files are playable        USB
• AAC (*.aac) files are playable          CD/USB
• MP3 files are playable          CD/USB
• WMA (.wma) files are playable       CD/USB
• WAV (.wav) files are playable         USB
• FLAC files are playable         USB

CD Features

• CD-R/RW Compatible          
• MP3, WMA & AAC playback
• CD Text with special Character Support    English(default) / Spanish / French / German / Russian / Greek
• D.A.C. processing       24bit
• 0 bit Mute     
• Random Function      DISC Random/Random OFF
• Repeat Function        Track Repeat/All Repeat

USB Features

• USB terminal, Front with dust cover
• USB Type       2.0 High speed
• MP3, WMA, AAC, WAV, FLAC playback       
• Repeat/Scan/Random search        
• Repeat / Random Play        
• Direct search
• Resume play 
• Time code display    
• 1,5A Smartphone Quick Charge     

iPod Features

• Made for iPod & iPhone *   
• USB Direct Control (Audio, 1 wire, Lightning-connector) with optional cable KCA-iP103
• Music playback         
• Alphabet search       
• Skip search   
• Related search          
• Direct Search
• iPod EQ Mode           
• Control by hand       
• App & iPod control mode    
• Spotify App Link       
• iAP over Bluetooth   
• iTunes Radio App      iAP1
• Reverse browsing    
• Battery charge + power control     

* Always update to latest Apple firmware

Audio Features

• Maximum Output Power     50W x 4
• MOSFET Power IC    
• Auxiliary Type           Mini-jack, front panel
• Pre-out           2 RCA
• Pre-out Output Level            2.5V
• Preout Rear / Subwoofer Switchable        
• Subwoofer Reference Level Adj.     
• 2-Way X'over network        
• 3-Way x'over (bi-amp connection)
• Tone Control / Easy EQ        13 band, 8 presets
• Balance/Fader/Loudness Control  
• Bass Boost Circuit      Off/+1/+2/+3/+4/+5
• Att.(-20dB) with smooth Volume Return  
• Easy 3-band EQ mode         
• Graphic Equalizer + Preset  13-Bands Graphic Equalizer with 8 Presets.
• Digital Sound Processor (DSP) Built-in     
• Digital Time Aligment (DTA)          
• Low- & High-pass Filter       
• Speaker Size Control , Front/rear/subwoofer independently
• Kenwood Sound Reconstruction    
• Sound Reconstruction         
• Space Enhancer       
• Realizer         
• Stage EQ        
• Drive EQ        

Bluetooth General Features

• Hands Free Profile with High Sound Quality         HFP V1.7.1
• Max num. of regist. phones for HFP            5 phones
• 2 phones fulltime connection         
• Audio Streaming (A2DP)    
• High Quality Audio Streaming         SBC/AAC
• Max num. of regist. units for A2DP 5 units
• Serial Port Profile (SPP)      
• Phonebook Access Profile (PBAP)  
• iPhone & Android automatic pairing via USB       
• Spotify App Link       
• KENWOOD Remote App Ready      
• KENWOOD Music Mix Support      
• Amazon Alexa ready
• Catchphone / Call Waiting  
• Private mode
• Alphabet Search (Phonebook)       
• Noise Canceller         
• Echo Canceller          
• Phone device status display           
• Audio device status display
• Signal strength display        
• Remaining battery display  
• Bluetooth Paring Indicator 
• High-quality noise canceling microphone  Rear Wired
• Bluetooth firmware upgradeable  

* depends on phone model/make  & Kenwood unit

Connectivity

• Front USB & AUX Input       
• OEM Wired Remote Control ready
• DC-Cord         Mitsumi to ISO
• Power Control (P.CON) wire           
• Amplifier pre-out      1 RCA: Rear/Subwoofer (selectable)
• FM Antenna Input    JASO connector
• External microphone input 3,5mm mini-jack

Tuner Specifications

• FM range: 87.5Mhz - 108MHz (50Khz step)        
• FM Usable Sensitivity           0.56μV/75ohm (S/N 30dBf)
• FM Quieting Sensitivity        1.58μV/75ohm (S/N 46dBf)
• FM Frequency Response      30Hz ~ 15kHz (± 3dB)
• FM Signal to noise ratio (Mono)      68dB
• FM Stereo Separation (1kHz)          40dB
• MW range: 531kHz - 1611kHz (9kHz step)         
• MW Usable Sensitivity          28.5μV
• LW range: 153kHz - 279kHz (9kHz step) 
• LW Usable Sensitivity           45μV

Codec Specs

• MP3 Format   MPEG 1/2 Audio Layer 3-Files
• WMA Format in accordance with Windows Media Audio
• AAC Format    AAC-LC “.aac”(CD&USB) and ".m4a"(USB) files
• WAV Format  RIFF waveform Audio Format (only for LinearPCM)
• FLAC Format  FLAC files (up to 96kHz/24bit)

CD Specifications

• Laser Diode    GaAIAs
• Digital Filter(D/A)     8 Times Over Sampling
• Digital/Analogue Converter 24 Bit
• Wow & Flutter           Below Measurable Limit
• Frequency Response            20Hz ~ 20kHz (±1dB)
• Total Harmonic Distortion    0.01% (1kHz)
• Signal to Noise Ratio 97dB (1kHz)
• Dynamic Range         92dB
• Channel Separation  85dB
• MP3 Decoder Compliant with MPEG-1/2 Audio Layer-3
• WMA Decoder           Compliant with Windows Media Audio
• AAC Decoder  AAC-LC".aac" Files

USB Specifications

• USB Version compatibility    USB 1.1 / 2.0 full speed
• File System     FAT 32 / 16 / 12
• Maximum Supply current    1500mA
• D/A Converter           24bit
• MP3 Decode  Compliant with MPEG-1/2 Audio Layer-3
• WMA Decode Compliant with Windows Media Audio
• AAC Decode   "m4a" & "aac" file encoded by AAC-LC format
• WAV Decode  Linear - PCM Files
• flac Decode    FLAC files up to 96kHz/24bit

Audio Specifications

• Maximum Power       50W x 4
• Output Power (DIN45324,+B=14.4v)        22W x 4
• Preout Level  2500mV / 10kOhm,
• Preout Impedance    ≤ 600Ohm
• Speaker Impedance  4Ohm ~ 8Ohm
• AUX Frequency Response    20Hz ~ 20kHz (±1dB)
• AUX Maximum Input Voltage          1000mV
• AUX Input Impedance          30kOhm

DSP Specifications

• Equalizer Type          Graphic
• Frequency band        13 bands
• Frequency band - Front       62.5Hz ~ 16kHz
• Equalizer Gain           –9db ~ +9db
• Q Control        0.25/ 0.50/ 1.00/ 2.00
• High Pass Filter frequency   Through/50 ~ 220 (Hz)
• High Pass Filter Slope           -12/-18/-24 dB/Oct
• Low Pass Filter frequency    50 ~ 120(Hz)/Through
• Low Pass Filter Slope            -12/-18/-24 dB/Oct
• Time Alignment         0 — 610cm(2 cm step)
• Car type         ► OFF ► COMPACT ► Full SIZE CAR ► WAGON ► MINIVAN ► SUV ► MINIVAN LONG

Bluetooth Specifications

• Technology    Bluetooth V4.2
• Frequency      2.402 - 2.48 GHz
• Output power            +4dBm(max), 0dBm (AVE) power class 2
• Maximum range        Line of sight approx. 10 meter
• Handsfree profile (HFP)     
• Serial port profile (SPP)      
• Advanced audio distribution profile (A2DP)        
• Audio Codec   SBC/AAC
• Audio/Video remote control profile (AVRCP)       
• Phonebook access profile (PBAP)  

Accessories

• Release keys  2 pieces
• Escutcheon   
• Installation Sleeve    
• DC cord (Mitsumi to ISO)     15 cm
• Handsfree Microphone        with 3 m cable

General Specifications

• Operating voltage     14.4V (10.5 ~ 16V Allowable)
• Maximum Current Consumption    10A
• Dark Current Consumption Below 1mA
• Dimensions (WxHxD)           182 x 53 x 155.5mm
• Weight            1200 gr.
• Operation Temperature Range       -10°C ~ 60°C
• Instruction Manuals Multi-language quick Guide