NAD T741, Руководство по обслуживанию

Страница: 3 / 64

3
SPECIFICATIONS
POWER AMPLIFIER AND PREAMPLIFIER SECTION (all channels stated 8 ohms)
Rated distortion (THD 20Hz-20 kHz FL/C/FR)
)
0.08%
(THD 20Hz-20 kHz SL/SR)
)
0.3%
Input Sensitivity (ref. 8 ohms, 1 kHz)
180+/-30 mV
S/N Ratio (A-wtd, 1KHz, 1W, 8 ohm)
*
-78 dB
(A-wtd, 1KHz, 80W, 8 ohm) FL/FR/C
*
92 dB
SL/SR
*
-90 dB
Frequency Response (20 Hz - 20 kHz) 0 ± 0.8 dB
Channel Balance (1 dB to -40 dB, 1 kHz)
)
2 dB
(-41 dB to -50 dB, 1 kHz)
)
3 dB
Audio muting at 1kHz
*
53 dB
Headphone O/P in 0.1%, 600 ohm load, CD in 500mV, 1 kHz
*
10V
Subwoofer out, 500mV in (THD at 2V O/P, 100 Hz)
*
0.5%
(S/N at 2V O/P, 100 Hz)
*
80 dB
Crosstalk (2V input, 10W, 1 kHz) > -68 dB
Continuous average power output (L/R/C RL/RR 8 ohms) 50 W
Controls
Bass (at 500mV in, 1W out, 100 Hz)
± 9 dB
Treble (at 500mV in, 1W out, 10 kHz) ± 9 dB
SURROUND SECTION
Channel separation
I/p mode : L, R : 1V in, 1 kHz, Ch R, L
*
45 dB
: o/p at unexpected, 1 kHz, Ch C
*
35 dB
I/p mode : L= -R : 1V in, 1 kHz, Ch R, L
*
28 dB
: o/p at unexpected, 1 kHz, Ch C
*
30 dB
I/p mode : L= R : 1V in, 1 kHz, Ch R, L
*
45 dB
: o/p at unexpected, 1 kHz, Ch SL, SR
*
30 dB
Frequency Response
I/p mode : L, R : 1V in, 1W, Ch R, L 40Hz 0 ± 1.5 dB
20kHz 0 ± 1.5 dB
I/p mode : L= R : 1V in, 1W, Ch C 300Hz
0 ± 0.8 dB
20kHz 0 ± 0.8 dB
I/p mode : L= -R : 1V in, 1W, Ch SL, SR 30Hz 0 ± 1.0 dB
6.5kHz -3 ± 1.0 dB
S/N Ratio ( 200mV in, 1, A-WTD w/ 1k termination)
I/p mode : L, R
: 1 kHz, Ch L, R
*
65 dB
I/p mode : L=R : 1 kHz, Ch C
*
65 dB
I/p mode : L=-R : 1 kHz, Ch SL, SR
*
65 dB
THD (2.2V in, 1W, w/ 80 kHz LPF, 1 kHz)
)
0.2%
DTS SECTION
Frequency Response
FL, FR, C, SL, SR: 200Hz 0 ± 0.8 dB
20kHz 0 ± 0.8 dB
Distortion 1W all channels
0.08%