Dublette ID = 129702 20 series

Country:  Canada
Manufacturer / Brand:  NAD, New Acoustic Dimension; Ontario
Year: 9999/9999 ? Category: Audio Amplifier or -mixer
Main principle Audio-Amplification
Wave bands - without
Power type and voltage Alternating Current supply (AC) / 117; 220; 240 Volt
Loudspeaker - This model requires external speaker(s).
Power out 40 W (undistorted)
from Model: Dublette ID = 129702 [20 series] - NAD, New Acoustic Dimension;
Material Metal case
Shape Book-shelf unit.
Dimensions (WHD) 420 x 96 x 240 mm / 16.5 x 3.8 x 9.4 inch

This version of the NAD 3020 series amplifiers has an additional 5-stepped power meter above the volume control.

See also the NAD Stereo Amplifier 3020 and 3020i

Power Amplifier Section
Continuous average power output at 8 Ohms 20-20kHz both channel driven: >20W
Rated distortion: <0.02%
Clipping headroom at 8 Ohms: +1.5dB
Clipping power at 8 Ohms/4 Ohms/2 Ohms: 28W/37W/42W
Dynamic headroom at 8 Ohms: +2.9dB
Dynamic power at 8 Ohms/4 Ohms/2 Ohms: 39W/58W/72W
Reactive load rating: +1.7dB
Transient overload recovery Time: <1uSec
Slew factor: >50
Slew rate: 15V/uSec
Damping factor at 50hz (ref. 8 Ohms): >55
T.H.D. 20-20kHz from 250mV to 20W: <0.02%
S.M.P.T.E.I.M. (60Hz + 7kHz, 4:1) from 20mV to 20W: <0.02%
I.H.F.I.M.D. (19kHz + 20kHz) at 20W: <0.02%
Frequency responce 20-20kHz (from Lab IN): +/- 0.5dB
Frequency Responce Range +/- 3dB: 10-70kHz

Preamplifier section:
Input impedance resistance/Capacitance: 47 kOhms/47pF
Input sensitivity (1kHz) for 1 Watt out/20W out: 0.5mV/2.5mV
Input overload at 20Hz/1kHz/20kHz: 27mV/270mV/2V
T.H.D (20-20kHz) and IMD at +30dB input level: <0.02%
RIAA Responce Accuracy: +/- 0.3dB
Signal-to-Noise Ratio A Weighted:
  with phono catridge connected ref 10mV / ref 5mV: 80dB/75dB
  with short circut input ref 10mV: 84dB

Power supply voltage switched inside unit wiring at main transformer.

Net weight (2.2 lb = 1 kg) 5.260 kg / 11 lb 9.4 oz (11.586 lb)

Model page created by Bartosz Szwed. See "Data change" for further contributors.

All listed radios etc. from NAD, New Acoustic Dimension; Ontario
Here you find 114 models, 111 with images and 22 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.