NAD T 743 Service Manual

4
SPECIFICATIONS
POWER AMPLIFIER SECTION
Rated distortion (Rated power level into 8 ohms, THD 20 Hz-20 kHz FL/C/FR) ≤ 0.1 %
(Rated power level into 8 ohms, THD 20 Hz-20 kHz SL/SR/BS) ≤ 0.1 %
Input Sensitivity (ref. 8 ohms, 1 kHz) 260
±±
±±
± 20mV
S/N Ratio (A-wtd, 1kHz, 1 W, 8 ohm, SL/SR/BL)
≥≥
≥≥
≥ - 75 dB
Frequency Response (20 Hz - 20 kHz) 0
±±
±±
± 1.0 dB
Channel Balance (1 dB to -40 dB, 1 kHz) ≤ 2 dB
(-41 dB to -50 dB, 1 kHz) ≤ 3 dB
Audio muting at 1 kHz
≥≥
≥≥
≥ 55 dB
Subwoofer out, 500 mV in (THD at 2 V O/P, 100 Hz) ≤ 0.5 %
Crosstalk (500 mV input, 10 W, 1 kHz)
≥≥
≥≥
≥ -57 dB
Controls
Bass (at 500 mV in, 1 W out, 100 Hz)
±±
±±
± 10 dB
±±
±±
± 2 dB
Treble (at 500 mV in, 1 W out, 10 kHz)
±±
±±
± 10 dB
±±
±±
± 2 dB
DOLBY DIGITAL SECTION
Channel Difference(FL ref. Track 30)
±±
±±
± 1.2 dB
Frequency Resporse at Dolby config.2 SL Track 46 200 - 20 kHz
±±
±±
± 0.8 dB
SR Track 47 200 - 20 kHz
±±
±±
± 0.8 dB
C Track 44 200 - 20 kHz
±±
±±
± 0.8 dB
Harmonic Distortion (1 W, Audio LPF, Dolby Congfig 1) FL Track 65 997 Hz ≤ 0.08 %
FR Track 67 997 Hz ≤ 0.08 %
SL Track 68 997 Hz ≤ 0.08 %
SR Track 69 997 Hz ≤ 0.08 %
C Track 66 997 Hz ≤ 0.08 %
S/N Ratio (TRACK 30 for O/P 1 W, FAUSE) CCIR / ARM
≥≥
≥≥
≥ 65 dB
Audio LPF
≥≥
≥≥
≥ 70 dB
A-WTD
≥≥
≥≥
≥ 70 dB
Channel Separation (1 W, A-WTD FILTER) Track 65 997 Hz
≥≥
≥≥
≥ 60 dB
DOLBY PRO LOGIC II SECTION
Frequency Resporse
I/P mode : L, R : 1 V in, 1 W, Ch L/R 40 Hz 0
±±
±±
± 2.0 dB
20 kHz 0
±±
±±
± 2.0 dB
I/P mode : L=R : 1 V in, 1 W, Ch /L/R 40 Hz 0
±±
±±
± 2.0 dB
Ch C 20 kHz 0
±±
±±
± 2.0 dB
I/P mode : L=-R : 1 V in, 1 W, Ch SL/SR 40 Hz 0
±±
±±
± 2.0 dB
20 kHz 0
±±
±±
± 2.0 dB
S/N Ratio (200 mV in, 1 W, A-WTD w/ 1 k 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 (2.2 V in, 1 W, w/ 80 kHz LPF, 1 kHz) ≤ 0.2 %

NAD T 743 Specifications

General

Brand	NAD
Model	T 743
Category	Receiver
Language	English