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CD player section
Laser diode:
GaAIAs
Digital filter (D/A):
8 Times Over Sampling
D/A converter:
24 Bit
Specifications
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:
90 dB
MP3 decode:
Compliant with MPEG-1/2 Audio Layer-3
WMA decode:
Compliant with Windows Media Audio
KDC-4051UM only:
AAC decode:
AAC-LC “.m4a” files
USB interface
USB standard:
USB1.1/ 2.0 (Full speed)
Maximum supply current:
500 mA
File system:
FAT16/ 32
MP3 decode:
Compliant with MPEG-1/2 Audio Layer-3
WMA decode:
Compliant with Windows Media Audio
KDC-4051UM only:
AAC decode:
AAC-LC “.m4a” files
Audio section
Maximum output power:
50 W × 4
KDC-U449/ KDC-U3049/ KDC-U349 only:
Full bandwidth power (at less than 1 % THD):
22 W × 4
KDC-4051UM only:
Output power (DIN 45324, +B = 14.4 V):
30 W × 4
Speaker impedance:
4 Ω — 8 Ω
Tone action:
Bass:
100 Hz ±8 dB
Middle:
1 kHz ±8 dB
Treble:
10 kHz ±8 dB
Preout level / load (CD):
2 000 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 (11
V — 16
V allowable):
14.4 V
Maximum current consumption:
10 A
Installation size (W × H × D):
182 mm × 53 mm × 158 mm
Weight:
1.3 kg
Subject to change without notice.
KDC-U449/ KDC-U3049/ KDC-U349 only:
FM tuner section
Frequency range:
200 kHz space:
87.9 MHz — 107.9 MHz
50 kHz space:
87.5 MHz — 108.0 MHz
Usable sensitivity (S/N= 26
dB):
11.2 dBf (1.0 μV/75 Ω)
Quieting sensitivity (DIN S/N = 46
dB):
19.2 dBf (2.5 μV/75 Ω)
Frequency response (±3
dB):
30 Hz — 15 kHz
Signal-to-Noise ratio (MONO):
63 dB
Stereo separation (1
kHz):
40 dB
AM tuner section
Frequency range:
Band 1 (MW):
10 kHz space:
530 kHz — 1 700 kHz
9 kHz space:
531 kHz — 1 611 kHz
Band 2 (SW1): 5 kHz space: 2 940 kHz — 7 735 kHz
Band 3 (SW2):
5 kHz space:
9 500 kHz — 10 135 kHz /
11 580 kHz — 18 135 kHz
Usable sensitivity (S/N= 20
dB):
MW: 31 dBμ (36 μV) / SW: 32 dBμ (40 μV)
KDC-4051UM only:
FM tuner section
Frequency range (50 kHz space): 87.5 MHz — 108.0 MHz
Usable sensitivity (S/N = 26
dB):
1.0 μV/75 Ω
Quieting sensitivity (DIN S/N = 46
dB):
2.5 μV/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 = 20
dB):
36 μV
LW tuner section
Frequency range:
153 kHz — 279 kHz
Usable sensitivity (S/N = 20
dB):
57 μV
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