User guide

English 35
Specifications
FM tuner section
Frequency range (50 kHz space):
87.5 MHz — 108.0 MHz
Usable sensitivity (S/N= 26 dB):
1 V/ 75 Ω
Quieting sensitivity (DIN S/N = 46 dB):
2.5 V/75 Ω
Frequency response (±3 dB): 30 Hz — 15 kHz
Signal-to-Noise ratio (MONO): 63 dB
Stereo separation (1 kHz): 40 dB
MW tuner section
Frequency range (9 kHz space): 531 kHz – 1,611 kHz
Usable sensitivity (S/N = 20dB): 36 µV
LW tuner section
Frequency range: 153 kHz – 279 kHz
Usable sensitivity (S/N = 20dB): 57 µV
CD player section
Laser diode: GaAIAs
Digital filter (D/A): 8 Times Over Sampling
D/A converter: 24 Bit
Spindle speed: 500 rpm — 200 rpm (CLV)
Wow & Flutter: Below Measurable Limit
Frequency response (±1 dB): 20 Hz — 20 kHz
Total harmonic distortion (1 kHz): 0.01 %
Signal-to-Noise ratio (1 kHz): 105 dB
Dynamic range: 93 dB
AAC decode: AAC-LC “.m4a” files
MP3 decode: Compliant with MPEG-1/2 Audio
Layer-3
WMA decode: Compliant with Windows Media
Audio
USB interface
USB standard: USB1.1/ 2.0 (Full speed)
Maximum supply current: 500 mA
File system: FAT16/ 32
AAC decode: AAC-LC “.m4a” files
MP3 decode: Compliant with MPEG-1/2 Audio
Layer-3
WMA decode: Compliant with Windows Media
Audio
SD card section (KDC-4751SD only)
Compatible physical format: Version 2.00
Maximum memory capacity: 32 GB
File System: FAT 16/ 32
AAC decode: AAC-LC “.m4a” files
MP3 decode: Compliant with MPEG-1/2 Audio
Layer-3
WMA decode: Compliant with Windows Media
Audio
Bluetooth section (KDC-BT41U/
KDC-BT31U only)
Technology: Bluetooth Ver. 2.0 Certified
Frequency: 2.402 – 2.480 GHz
Output Power: +4 dBm (MAX), 0 dBm (AVE)
Power Class 2
Maximum Communication range:
Line of sight approx. 10m (32.8 ft)
Profile:
HFP (Hands Free Profile),
SPP (Serial Port Profile),
HSP (Headset Profile),
OPP (Object Push Profile),
PBAP (Phonebook Access Profile),
SYNC (Synchronization Profile)
Audio section
Maximum output power: 50 W × 4
Output power (DIN 45324, +B=14.4V): 30 W × 4
Speaker impedance: 4 Ω — 8 Ω
Tone action:
Bass: 100 Hz ±8 dB
Middle: 1 kHz ±8 dB
Treble: 12.5 kHz ±8 dB
Preout level / load (CD): 2,500 mV/ 10 kΩ
Preout impedance: ≤ 600 Ω
Auxiliary input section
Frequency response (±3 dB): 20 Hz — 20 kHz
Input maximum voltage: 1,200 mV
Input impedance: 10 kΩ
General
Operating voltage:
KDC-BT41U/ KDC-BT31U: (10.5 V — 16 V allowable):
14.4 V
KDC-4751SD: (11 V — 16 V allowable): 14.4 V
Maximum current consumption: 10 A
Installation size (W × H × D):
182 mm × 53 mm × 160 mm
Weight: 1.3 kg
Subject to change without notice.
B64-4799-10_01_E_English.indd 35B64-4799-10_01_E_English.indd 35 11/01/06 15:0511/01/06 15:05