NAD 705 User manual

705 Stereo Receiver
Date of manufacture : Feb 92 - Oct 95
Please note that this document contains the text from the original product brochure, and some technical statements may now be out of date
The NAD 705 provides all the power and control you need and more. Developed from the successful
402 and 300 Series circuits, the 705 tuner section is further refined to produce a remarkably clear, stable
signal with accurate tuning in 25 kHz steps, and the amplifier section has been uprated to 40 watts per
channel into 8 ohms/90watts into 4 ohms. Also permits input selection, A/B speaker selection, “mute”
and includes an NAD System remote control.
Soft Clipping and EDP circuits protect and enhance peak performance. Efficient tone controls and an
exceptionally quiet phono pre-amp allow further listening pleasure.

PRE-AMP SECTION
Phono input
Input impedance (R and C) 47kΩ/ 250pF
Input sensitivity, 1kHz MM 2.5mV ref. 0.5V
Signal/Noise ratio (A-weighted with cartridge connected) MM 76dB ref. 5mV
THD (20Hz - 20kHz) <0.04%
RIAA response accuracy (20Hz - 20kHz) ±0.5dB
Line level inputs
Input impedance (R and C) 50kΩ/ 200pF
Input sensitivity (ref. 1W) 180mV
Maximum input signal >8V
Signal/Noise ratio (A-weighted ref 1W) 90dB
Frequency response (20Hz - 20kHz) +0.5dB, -1dB
Line level outputs
Output impedance Pre-amp 220Ω
Tape Source Z + 2kΩ
Maximum output level Pre-amp >8V
Tape >10V
Tone controls
Treble ±7dB at 10kHz
Bass ±10dB at 50Hz
POWER AMP SECTION
Continuous output power into 8Ω* 40W (16dBW)
Rated distortion (THD 20Hz - 20kHz) 0.03%
Clipping power (maximum continuous power per channel) 50W
IHF Dynamic headroom at 8Ω+3.5dB
IHF dynamic power (maximum short term power per channel) 8Ω90W (19.5dBW)
4Ω130W (21dBW)
2Ω160W (22dBW)
Damping factor (ref. 8Ω, 50Hz) >60
Input impedance 20kΩ/ 560pF
Input sensitivity (for rated power into 8Ω)1V
Frequency response (20Hz - 20kHz) ±0.3dB
Signal/noise ratio ref. 1W 100dB
ref. rated power 116dB
THD (20Hz - 20kHz) <0.03%
FM TUNER SECTION
Input sensitivity Mono -30dB THD+N 10dBf (0.9µV/75Ω)
Mono 50dB S/N 14dBf (1.4µV/75Ω)
Stereo 50dB S/N 35dBf (15µV/75Ω)
Stereo 60dB S/N 45dBf (50µV/75Ω)
Capture ratio (45 - 65dBf) <1.6dB
AM rejection (45 - 65dBf) >60dB
Selectivity 60dB
Image rejection >80dB
I F rejection >60dB
Harmonic distortion Mono 0.15%
Stereo 0.2%
Signal/Noise ratio Mono >82dB
Stereo >76dB
Frequency response ±0.5dB 30Hz - 15kHz
Channel separation at 1kHz >35dB
AM TUNER SECTION
Usable sensitivity 5µV
Selectivity 30dB
Image rejection 45dB
I F rejection 35dB
Signal/Noise ratio 45dB
Harmonic distortion 0.5%
Remote Yes
NAD Link Yes
PHYSICAL SPECIFICATIONS
Dimensions (W x H x D) 420 x 105 x 318mm
Net weight 6.6kg
Shipping weight 7.6kg
* Minimum power per chnnel, 20Hz - 20kHz, both channels driven with no more than rated distiortion.
Dimensions are of unit’s cabinet without attached feet; add up to 18mm for total height.
Dimension depth excludes terminals, sockets, controls and buttons.
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