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PRE-AMP SECTION

Phono input

Input impedance 

(R and C)

MM

47k

/ 100/200/320pF

MC

100

/ 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)

10k

/ 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

800

Tape

Source Z + 1k

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 8

*

55W (17.4dBW)

Rated distortion 

(THD 20Hz - 20kHz)

0.03%

Clipping power 

(maximum continuous power per channel)

65W

IHF Dynamic headroom at 8

+3dB

IHF dynamic power 

(maximum short term power per channel)

8

100W 

4

100W 

2

130W 

Damping factor 

(ref. 8

, 50Hz)

>50

Input impedance

22k

Input sensitivity 

(for rated power into 8

)

1.3V

THD 

(20Hz - 20kHz)

<0.03%

Bridged Mode

Continuous output power into 8

*

125W (21dBW)

IHF Dynamic headroom at 8

+2.5dB

IHF dynamic power 

(maximum short term power per channel)

8

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

Summary of Contents for 3155

Page 1: ... monophonic mode each amplifier is rated conservatively at 150 watts continuous output And these amplifiers maintain a full 3 dB of IHF dynamic headroom 2 5 dB in bridged mode meaning that they deliver twice their rated power in brief bursts over 110 watts channel in stereo and about 250 watts in bridged configuration This headroom for peaks is crucially important for reproducing the uncompressed ...

Page 2: ...tering is included to eliminate signal contamination from turntable rumble record warps tonearm stylus resonances vibration and acoustic feedback This guarantees the cleanest possible handling of signals within the audible range and eliminates the excessive woofer cone excursions that can cause intermodulation distortion and muddy bass in systems without filtering Power Amplifier Features 3155 and...

Page 3: ...aximum power transfer its building block expansion options and its consistently musical sound quality the NAD 3155 is a strong con tender for the title of the best integrated amplifier in the world today The NAD 2155 is a superb general purpose power amplifier with an unusually attractive ratio of performance and power to price and it is also the core of the unique NAD building block concept that ...

Page 4: ...r 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 8Ω 100W 4Ω 100W 2Ω 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 I...

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