NAD 3155 brochure PRE-AMP Section

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PRE-AMP SECTION

 

 

Phono input

 

 

Input impedance (R and C)

MM

47kΩ / 100/200/320pF

 

MC

100Ω / 1000pF

Input sensitivity, 1kHz

MM

2.8mV

 

 

 

 

MC

0.28mV

Signal/Noise ratio (A-weighted with cartridge connected)

MM

78dB ref. 5mV

 

MC

78dB ref. 0.5mV

THD (20Hz - 20kHz)

 

<0.04%

RIAA response accuracy (20Hz - 20kHz)

 

±0.5dB

 

 

 

Line level inputs

 

 

Input impedance (R and C)

 

10kΩ / 220pF

Input sensitivity (ref. 1W)

 

25mV

Maximum input signal

 

>10V

Signal/Noise ratio (A-weighted ref 1W)

 

86dB

Frequency response

 

20Hz - 20kHz / ±0.5dB

 

 

 

 

 

 

Line level outputs

 

 

Output impedance

Pre-amp

800Ω

 

Tape

Source Z + 1kΩ

Maximum output level

Pre-amp

10V

 

 

 

Tone controls

 

 

Treble

 

±7dB at 10kHz

Bass

 

±7dB at 100Hz

Bass EQ

 

+3dB at 70Hz

 

 

+6dB at 32Hz

Infrasonic filter (switchable)

 

-3dB at 15Hz - 12dB/octave

 

 

 

 

 

 

POWER AMP SECTION

 

 

Continuous output power into 8Ω *

 

55W (17.4dBW)

Rated distortion (THD 20Hz - 20kHz)

 

0.03%

Clipping power (maximum continuous power per channel)

 

65W

IHF Dynamic headroom at 8Ω

 

+3dB

IHF dynamic power (maximum short term power per channel)

100W

 

100W

 

130W

Damping factor (ref. 8Ω , 50Hz)

 

>50

Input impedance

 

22kΩ

Input sensitivity (for rated power into 8Ω )

 

1.3V

 

 

 

THD (20Hz - 20kHz)

 

<0.03%

 

 

 

Bridged Mode

 

 

Continuous output power into 8Ω *

 

125W (21dBW)

IHF Dynamic headroom at 8Ω

 

+2.5dB

IHF dynamic power (maximum short term power per channel)

250W

 

 

 

Remote

 

Yes

NAD Link

 

Yes

 

 

 

PHYSICAL SPECIFICATIONS

 

 

Dimensions (W x H x D)

 

420 x 108 x 380mm

 

 

 

Net weight

 

8.4kg

Shipping weight

 

9.8kg

Power consumption (120 ~ 240V, 50/60Hz)

 

340W

 

 

 

*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.

© NAD Electronics. All rights reserved. E & OE

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Contents Integrated Amplifier High Current and Headroom Designing For Real-Use ConditionsPreamplifier Features Power Amplifier Features 3155Bass EQ Soft ClippingExceptional Performance and Value PRE-AMP Section

3155 specifications

The NAD 3155 is a well-regarded audio amplifier that has earned a dedicated following among enthusiasts and casual listeners alike due to its impressive performance and sound quality. Released as part of NAD's classic series, the 3155 combines robust engineering with user-friendly features, making it a versatile choice for various audio setups.

At the heart of the NAD 3155 is its powerful dual-channel amplification, which delivers a respectable output of 60 watts per channel at 8 ohms and up to 100 watts per channel when driving lower impedance speakers. This capability ensures that the 3155 can easily handle a wide range of speaker types and sizes, making it suitable for various listening environments, from intimate rooms to larger spaces.

One of the standout characteristics of the 3155 is its renowned Warm Sound Signature, a hallmark of NAD's design philosophy. The amplifier employs sophisticated circuitry and high-quality components, ensuring that it reproduces audio with exceptional clarity and richness. Whether listening to music or watching movies, users appreciate the dynamic range and detail the 3155 brings to the listening experience.

In terms of technology, the NAD 3155 is built on a solid foundation of high-current amplifier design. This approach allows it to maintain performance even under challenging conditions, providing consistent output without distortion or clipping. The amplifier also features a hum and noise-free operation, thanks to NAD's commitment to high-quality power supply design.

Another key feature is the integration of multiple inputs, including phono, tape, aux, and a dedicated input for CD players, making the NAD 3155 a versatile hub for audio sources. The presence of a headphone jack adds convenience for private listening, while tone controls allow users to tailor the sound to their preferences without compromising the overall audio integrity.

The NAD 3155's robust build quality stands out, with a rugged chassis designed to minimize vibration and interference. Its sleek, understated aesthetic blends seamlessly with various audio equipment, making it an attractive addition to any setup.

In summary, the NAD 3155 is an exceptional amplifier that excels in delivering high-performance audio with a warm and rich sound. With its powerful output, sophisticated technology, and user-friendly features, it remains a popular choice for both audiophiles and casual listeners seeking a reliable and engaging listening experience.