NAD 2100 User manual

3100 Integrated Amplifier
Date of manufacture : ?
Please note that this document contains the text from the original product brochure, and some technical statements may now be out of date
For most manufacturers, the highest quality parts and most highly refined designs are used only in
separate audio components-in preamplifiers, power amplifiers, and tuners. Integrated amplifiers are
usually made to a less exalted standard, while all-in-one stereo receivers are regarded as compromise
products suitable only for casual listeners. But not at NAD. NAD electronics are designed in modular
form, and many of the same circuits are used in all product categories. The 3100 Integrated Amplifier,
for example, combines NAD’s robust 2100 Power Amplifier with high-quality preamplifier circuitry
derived from some of NAD’s finest preamplifiers. The pre- and power amplifier sections of the 3100 are
joined by removable external jumpers that allow you to insert external processors such as a surround-
sound unit or an electronic crossover for bi-amping in the signal path.
The power amplifier section of the 3100 employs all of the NAD innovations described on pages 4 and
5. Like the 2100 Power Amplifier, it is conservatively rated at 50 watts/ channel for sine-wave test tones,
while its Power Envelope circuit produces 200 to 330 watts channel of long-term tone-burst power for
the dynamic waveforms of music. Its high-current output stage, impedance selector, and heavy-duty
speaker terminals are designed to deliver maximum power to loudspeakers of any impedance. The
preamplifier section of the 3100 contains the same low-noise MM/MC phono stage as the 1700
Preamplifier/ Tuner and the same switchable Infrasonic Filter, flexible two-way tape connections, Bass
EQ, and ultra-quiet feedback-operated volume control as NAD’s state-of-the-art 1300 Preamplifier.
The tone controls are Baxandall bass and treble circuits, but with their parameters carefully selected to
allow substantial adjustments at low and high frequencies without altering the neutrality of the
midrange.

PRE-AMP SECTION
Phono input
Input impedance (R and C) MM 47kΩ/ 100pF
MC 100Ω/ 1000pF
Input sensitivity, 1kHz MM 2.5mV ref. 0.5V
MC 0.18mV
Signal/Noise ratio (A-weighted with cartridge connected) MM 75dB ref. 5mV
MC 75dB ref. 0.5mV
THD (20Hz - 20kHz) <0.04%
RIAA response accuracy (20Hz - 20kHz) ±0.5dB
Line level inputs
Input impedance (R and C) 50kΩ/ 500pF
Input sensitivity (ref. 1W) 20mV
Maximum input signal 10V
Signal/Noise ratio (A-weighted ref 1W) 94dB
Frequency response 20Hz - 20kHz / ±0.5dB
Line level outputs
Output impedance Pre-amp 600Ω
Tape Source Z + 1kΩ
Maximum output level Pre-amp 10V
Tone controls
Treble ±9dB at 10kHz
Bass ±10dB at 50Hz
Bass EQ +3dB at 55Hz
+6dB at 36Hz
Infrasonic filter (switchable) -3dB at 12Hz - 12dB/octave
POWER AMP SECTION
Continuous output power into 8Ω* 60W (17dBW)
Rated distortion (THD 20Hz - 20kHz) 0.03%
Clipping power (maximum continuous power per channel) 70W
IHF Dynamic headroom at 8Ω+6dB
IHF dynamic power (maximum short term power per channel) 8Ω200W (23dBW)
4Ω250W (24dBW)
2Ω330W (25dBW)
Damping factor (ref. 8Ω, 50Hz) >100
Input impedance 10kΩ/ 600pF
Input sensitivity (for rated power into 8Ω)850mV
Frequency response 3Hz - 100kHz / +0, -3dB
Signal/noise ratio ref. 1W 100dB
ref. rated power 117dB
THD (20Hz - 20kHz) <0.03%
Remote No
NAD Link No
PHYSICAL SPECIFICATIONS
Dimensions (W x H x D) 435 x 106 x 385mm
Net weight 10.5kg
Shipping weight 11.6kg
Power consumption (120 ~ 240V, 50/60Hz) 330VA
* 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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