NAD T760, Service Manual

Page: 5 / 65

3
SPECIFICATIONS
POWER AMPLIFIER AND PREAMPLIFIER SECTIONS
Rated distortion (THD 20Hz-20 kHz FC/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)
≥
-76 dB
(A-wtd, 1KHz, 70W, 8 ohm)
≥
-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
70
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 ± 0.8 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%
AC-3/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%
S/N 1 W ( CCIR/ARM, 200 Hz NOTCH & 400 Hz HPF)
≥
85 dB