NAD 3400 User manual

3400 Integrated Amplifier
Date of manufacture : Jan 85 - ?
Please note that this document contains the text from the original product brochure, and some technical statements may now be out of date
The 3400 offers all of the advanced circuitry and control features of the 3100, plus higher power, more
sophisticated tone controls, and the convenience of remote-control operation.
The power amplifier section of the 3400 is the NAD 2400 Power Amplifier.
Conservatively rated at 100 watts per channel for continuous test tones, its Power Envelope circuit
produces 370 to 440 watts/channel of long-term tone-burst power for musical climaxes. For special
situations it can be converted to a bridged mono amp with twice the power (200 watts continuous, 800
watts dynamic) and paired with the 2400 for stereo. Current peaks of up to 40 amperes are available to
control voice-coil motion in low-impedance speakers.
Only a very few expensive separate power amplifiers can equal the solid speaker-driving power of the
3400.
In the 3400, the phono pre-amp, wide-range line-level input circuits and all operating controls are the
same as those in NAD’s finest preamplifier, the 1300.
They are virtually overload-proof, with 10 volts of headroom for peaks (14 dB more than needed to
accommodate the maximum output of any CD player), and they are also exquisitely free from hum and
noise; the signal/noise ratio of the 3400, from the CD input to the speaker terminals, is an impressive
116 dB. The most subtle details and faintest traces of hall ambience are reproduced with perfect clarity.
Bass EQ and infrasonic filtering provide solid, powerful deep bass response without boomy midbass.
Semi-parametric tone controls combine the simplicity of ordinary bass and treble controls with the
musically useful flexibility of a two-band parametric equalizer. And for total operating convenience you
can use the 3400 Amplifier with NAD’s System Remote Control.

PRE-AMP SECTION
Phono input
Input impedance (R and C) MM 47kΩ/ 100/200/300pF
MC 100Ω/ 1000pF
Input sensitivity, 1kHz MM 2.2mV ref. 0.5V
MC 0.11mV
Signal/Noise ratio (A-weighted with cartridge connected) MM 80dB ref. 5mV
MC 78dB ref. 0.5mV
THD (20Hz - 20kHz) <0.02%
RIAA response accuracy (20Hz - 20kHz) ±0.3dB
Line level inputs
Input impedance (R and C) 50kΩ/ 250pF
Input sensitivity (ref. 1W) 15mV
Maximum input signal 10V
Signal/Noise ratio (A-weighted ref 1W) 96dB
Frequency response 20Hz - 20kHz / ±0.3dB
Line level outputs
Output impedance Pre-amp 600Ω
Tape Source Z + 1kΩ
Maximum output level Pre-amp 10V
Tone controls
Treble ±12dB at 3, 6 or 12kHz
Bass ±12dB at 50, 100 or 250Hz
Bass EQ +3dB at 60Hz
+6dB at 36Hz
Infrasonic filter (switchable) -3dB at 12Hz - 12dB/octave
POWER AMP SECTION
Continuous output power into 8Ω* 100W (20dBW)
Rated distortion (THD 20Hz - 20kHz) 0.03%
Clipping power (maximum continuous power per channel) 130W
IHF Dynamic headroom at 8Ω+5.7dB
IHF dynamic power (maximum short term power per channel) 8Ω370W (25.7dBW)
4Ω400W (26dBW)
2Ω440W (26.4dBW)
Damping factor (ref. 8Ω, 50Hz) >100
Input impedance 20kΩ/ 600pF
Input sensitivity (for rated power into 8Ω)1V
Frequency response 3Hz - 100kHz / +0, -3dB
Signal/noise ratio ref. 1W 98dB
ref. rated power 118dB
THD (20Hz - 20kHz) <0.03%
Remote Yes
NAD Link Yes
PHYSICAL SPECIFICATIONS
Dimensions (W x H x D) 435 x 120 x 385mm
Net weight 11kg
Shipping weight 12.6kg
Power consumption (120 ~ 240V, 50/60Hz) 390VA
* 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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