13
SPECIFICATIONS
Audio amplifier
Power Output
20 W RMS
×
4 Channels at 4 Ω
and ≤ 1% THD+N
Load Impedance
4 Ω (4 Ω to 8 Ω allowance)
Frequency Response
40 Hz to 20 000 Hz
Signal-to-Noise Ratio
80 dB A (reference: 1 W into 4 Ω)
Line-Out, Subwoofer-Out Level/
Impedance
2.5 V/10 kΩ load (full scale)
Output Impedance
≤ 600 Ω
Tuner
FM Frequency
Range
87.9 MHz to 107.9 MHz (200 kHz step)
87.5 MHz to 108.0 MHz (50 kHz step)
Usable Sensitivity
9.3 dBf (0.8 μV/75 Ω)
50 dB Quieting Sensitivity
16.3 dBf (1.8 μV/75 Ω)
Alternate Channel Selectivity
65 dB (at 400 kHz)
Frequency Response
40 Hz to 15 000 Hz
Stereo Separation
40 dB
AM Frequency Range
530 kHz to 1 700 kHz (10 kHz step)
531 kHz to 1 611 kHz (9 kHz step)
Sensitivity/Selectivity
20 μV/40 dB
CD player
Signal Detection System
Non-contact optical pickup (semiconductor laser)
Number of Channels
2 channels (stereo)
Frequency Response
5 Hz to 20 000 Hz
Signal-to-Noise Ratio
98 dB
Wow and Flutter
Below measurable limit
USB
USB Standard
USB 1.1, USB 2.0
Data Transfer Rate (Full Speed)
Max. 12 Mbps
Compatible Device s
Mass storage class
Compatible File System s
FAT 32/16/12
Playable Audio Format s
MP3/WMA
Maximum Supply Current
DC 5 V
d
1 A
General
Power Requirements (Operating Voltage)
DC 14.4 V (11 V to 16 V allowance)
Grounding System
Negative ground
Allowable Operating Temperature
0°C to +40°C (32°F to 104°F)
Dimensions
(W × H × D)
Installation Size
(approx.)
182 mm × 53 mm × 159 mm
(7-3/16" × 2-1/8" × 6-5/16")
Panel Size (approx.)
KD-A645
/
KD-R640
:
188 mm × 59 mm × 10 mm
(7-7/16" × 2-3/8" × 7/16")
KD-R540
/
KD-R440
:
188 mm × 59 mm × 13 mm
(7-7/16" × 2-3/8" × 9/16")
Weight (excluding accessories)
1.2 k
g
(2.6 lbs)
Subject to change without notice.
ENGLISH
EN_KD-A645_R640_540_440[J]f.indd 13
EN_KD-A645_R640_540_440[J]f.indd 13
8/30/12 4:43:06 PM
8/30/12 4:43:06 PM