KDC-BT640U
FM
Frequency Range (Frequency step)87.5MHz to 108.0MHz(50kHz)
Usable Sensitivity8.2dBfS/N 30dB(0.71μV/75Ω）
Quieting Sensitivity17.2dBf
DIN S/N 46dB(2.0μV/75Ω）
Frequency Response (±3.0dB)30Hz to 15kHzS/N64.0dB(MONO)
Stereo Separation40dB(1kHz)
AM
Frequency Range
Band 1(MW) / 531kHz to 1602kHz(9kHz)
Band 2(SW1) / 2940kHz to 7735kHz(5kHz)(Frequency step)
Band 3(SW2) / 9500kHz to 10135kHz / 11580kHz to 18135kHz (5kHz)
Channel Space SelectionBand 1 / 9kHzBand 2/3 / 5kHz
Usable Sensitivity29.0dBμ(28.2μV) : MW
S/N:20dB30dBμ (32μV) : SW
CD
Laser Diode: GaAlAs
Digital Filter(D/A) 8 Times OverSampling
Spindle Speed 500 to 200rpm (CLV)
Wow & Flutter Below Measurable LimitFrequency
Response20Hz to 20kHz(±1dB)
Total Harmonic Distortion0.02%(1kHz)
S/N Ratio (dB)99dB(1kHz)
Dynamic Range92dB
Channel Separation90dB
MP3 Decode: Compliant with MPEG-1/2 Audio Layer-3
WMA Decode: Compliant with WINDOWS MEDIA AUDIO
AAC Decode: AAC-LC ".aac" files
WAV Decode: -
Preout Level(mV)/Load -Unbalanced3500mV/10kΩ
Preout Impedance(Ω)=<600Ω
Speaker Impedance(Ω)4 to 8Ω
USB I/F
USB: USB 1.1 / 2.0 High speed
File SystemFAT12 / 16 / 32
Maximum Supply currentDC5V(DC logo) 1.5A
MP3 decode: Compliant with MPEG-1/2 Audio Layer-3
WMA decode: Compliant with Windows Media Audio
AAC Decode: AAC-LC ".aac", "m4a" files
WAV Decode: Linear-PCM
FLAC Decode: FLAC file (Up to 24bit/96kHz)
AUX
Frequency Response20Hz to 20kHz ±3dB
Input
Input Maximum Voltage1000mV
Input Impedance30kΩ
AMP
Maximum Power50Wx4
Full Bandwidth Power (at less than 1%THD)22Wx4
TONE
Band162.5Hz ±9dB
Band2100Hz ±9dB
Band3160Hz ±9dB
Band4250Hz ±9dB
Band5400Hz ±9dB
Band6630Hz ±9dB
Band71kHz ±9dB
Band81.6kHz ±9d
BBand92.5kHz ±9d
BBand104kHz ±9dB
Band116.3kHz ±9dB
Band1210kHz ±9dB
Band1316kHz ±9dB
Bluetooth
VersionBluetooth 4.2
Frequency Range2.402 to 2.480GHz
RF Output Power (E.I.R.P.)+4dBm (MAX), Power Class 2
Maximum Communication rangeLine of sight approx.10m(32.8ft)
Profile
HFP 1.7.1 (Hands Free Profile)
SPP(Serial Port Profile)
PBAP(Phonebook Access Profile)
A2DP(Advanced Audio Distribution Profile)
AVRCP 1.6.1 (Audio/Video Remote Control Profile)
GENE
Operating voltage12V DC car battery
Installation Size (W)182mm(H)53mm(D)155.5mm
Net Weight (Trim plate and Mounting sleeve: Included)1.2(kg)
