NAD 7140 Stereo Receiver User Manual


 
PRE-AMP SECTION
Phono input
Input impedance (R and C) 47k / 100pF
Input sensitivity, (1kHz, ref. rated power) 3.2mV
Signal/Noise ratio (A-weighted with cartridge connected) 76dB ref. 5mV
THD (20Hz - 20kHz) <0.04%
RIAA response accuracy (20Hz - 20kHz) ±0.5dB
Line level inputs
Input impedance (R and C) 15k / 100pF
Input sensitivity (ref. rated power) 160mV
Maximum input signal >10V
Signal/Noise ratio (A-weighted ref 1W) 88dB
Frequency response (20Hz - 20kHz) ±0.5dB
Infrasonic filter -3db at 15Hz, 24dB/octave
THD 0.01%
Line level outputs
Output impedance Pre-amp 600
Tape Source Z + 1k
Phones 220
Maximum output level 12V
Tape 8V
Phones >10V into 600
>500mV into 8
Tone controls
Treble ±7dB at 10kHz
Bass ±10dB at 50Hz
Bass EQ +3dB at 70Hz
+6dB at 40Hz
POWER AMP SECTION
Continuous output power into 8 * 40W (16dBW)
Rated distortion (THD 20Hz - 20kHz) 0.03%
Clipping power (maximum continuous power per channel) 50W
IHF Dynamic headroom at 8 +6dB
IHF dynamic power (maximum short term power per channel) 8 160W (22dBW)
4 200W (23dBW)
2 250W (24dBW)
Damping factor (ref. 8, 50Hz) >50
Input impedance 22k / 880pF
Input sensitivity (for rated power into 8) 1V
Frequency response 6Hz - 50kHz +0, -3dB
Signal/noise ratio ref. 1W 100dB
ref. rated power 116dB
THD (20Hz - 20kHz) <0.03%
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