NAD C 725BEE, Service Manual

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PREAMPLIFIER SECTION
LINE LEVEL INPUTS
(MP, CD, Disc, Aux, Tape)
Input impedance (R and C) 22 kohms + 100 pF
Input sensitivity (ref. rated power) 3 2 0 mV
Maximum input signal > 4.5V
Signal / Noise ratio, A-weighted 97.0 dB ref. 1W
(from CD Input to Speakers Output, Volume Setting
for 500mV in , 8ohms 1W out)
Signal to noise ratio preamp out, IHF “A” weighted
110 dB re 500mV
Frequency response, 20 Hz – 20 kHz < +/-0.1 dB (tone defeat on )
< +/-0.2 dB (tone defeat off)
THD + Noise, SMPTE IM < 0.01% at 5 V out
LINE LEVEL OUTPUTS
Pre-amp output impedance 80 ohms
Tape output impedance Source Z + 1kohms
Maximum output level pre-amp out : > 11 V
Tape-out : > 10 V
CONTROLS
Treble +/- 5 dB at 10 kHz
Bass +/- 8 dB at 100 Hz
IR IN and OUT
Input Resistance > 10 kohms
Input Voltage Min 5 V
Output Resistance < 3 0 ohms
TRIGGER Out
Output Current 50 mA
Output Voltage 12 V
DIMENSIONS AND WEIGHTS
Net Weight 9.4 kg ( 20.7 Ib)
Shipping Weight 11 kg ( 22 Ib)
DIMENSION (W
×
H
×
D) 4 3 5
×
149
×
396MM