NAD 3100 User Manual

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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note that this document contains the text from the original product brochure, and some technical statements may now be out of date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 preand power amplifier sections of the 3100 are joined by removable external jumpers that allow you to insert external processors such as a surroundsound 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)

200W (23dBW)

 

250W (24dBW)

 

330W (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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