C340 Integrated Amplifier
2 x 50 Watts continuous 100 Watts Dynamic Power into 8 ohms 170 Watts Dynamic Power into 2 ohms Impedance Sensing Circuit (ISC) topology Full System Remote control Headphones socket 7 Line inputs, including two tape in/outs All Discrete circuitry Short signal path from input to output All sockets Gold plated Tone controls defeat switch Pre-out / Main-in Soft Clipping NAD Link
NAD has always had a formidable reputation when it comes to quality, budget amplifiers. The NAD 304 and more recently the NAD 314 all have received world-wide accolades for their outstanding performance and value for money. To complete the hat-trick, NAD is proud to present a completely new amplifier, using new circuit topology, offering more output power and full remote control. The NAD C 340 is destined to become another NAD classic. Features The C 340 is fully remote controlled and comes supplied with the NAD C Series system remote control. As the C 340 also has NAD Link the remote control will also operate many other NAD products such as CD players, tuners etc. Flexibility is another NAD strong point. The C 340 has 7 line inputs (including 2 tape in/outputs with dubbing facility) and the pre-amplifier section can be separated from the power amplifier for easy upgrades (biamping, for instance) or adding ancillary equipment without making the C 340 redundant. The headphone socket will drive virtually any nonelectrostatic headphone. It is fashionable to omit tone controls nowadays: However, provided that the tone controls are properly designed, these can really be a useful tool to make improvements to the overall sound. The C 340 tone controls only work at the frequency extremes leaving the critical mid-band essentially unaltered. The tone control circuits can be completely bypassed by using the tone defeat switch. The C 340 also incorporates NAD's acclaimed switchable Soft Clipping circuit which significantly reduces the risk of damage to loudspeakers due to prolonged high power operation. Design: Impedance Sensing Circuit (ISC) The NAD C 340 is one of the first products to benefit from one of Bjrn Erik Edvardsen's latest developments: ISC topology The ISC topology allows the C 340 to deliver maximum performance under virtually any circumstance, independent of the loudspeakers it is driving. The circuitry automatically recognizes the impedance characteristics of the loudspeaker and will then adjust its power supply settings to best cope with that specific load. This also gives it an unusual characteristic compared to traditional amplifiers when measuring its continuous output power; the RMS output power remains the same at 50 Watts with either an eight or a four ohms load. This is not unusual for NAD however. NAD takes a stance to the mindless brochure power approach which doesn't give a realistic indication of an amplifier's true capabilities. Instead, the ISC topology is a practical approach to enable an amplifier to easily deal with dynamics and difficult loads. More meaningful are the C 340's dynamic capabilities; up to 170 Watts into 2 ohms and up to 35 amps current capability! Design The traditional but still very valid and useful NAD features such as Soft Clipping (helps prevent your speakers from damage through abuse) and Pre-out/Main-in for extra flexibility and to provide an easy upgrade path. Like all the other in- and output sockets, the Pre-out/Main-in sockets are gold plated for long-term contact reliability. Other design features include the generous power supply with over-rated output devices further lead to low noise and low distortion for the entire amplifier. Although the protection circuitry will protect the amplifier against blatant cases of abuse, such as short circuiting the speakers, it doesn't intrude on or impair the integrity of the signal even under the most demanding conditions. Its superb build quality, using selected, closetolerance components and excellent finish with aluminum front panel ensure that the C 340 is an amplifier that will provide many years of excellent and trouble-free performance.

PRELIMINARY SPECIFICATIONS - NAD C 340 Continuous average power output into 8
(Min power per channel, 20Hz - 20kHz both channels driven with no more than rated distortion)
50W (17dBW) 0.03% 55W 3.5dB 100W (20dBW) 130W (21.1dBW) 170W (22.3dBW) >60 0.3dB -3dB <0.03% 20k /500pF 165mV 90dB 104dB 220 Source Z + 1k 220 5dB at 10kHz 7dB at 100Hz
Rated distortion (THD 20Hz - 20kHz) Clipping power (max continuous power per channel) IHF dynamic headroom at 8 IHF dynamic power (max short term power per channel)
Damping factor Frequency response THD (20Hz - 20kHz, from 250mW to rated power) Input impedance Line inputs Input sensitivity Signal to noise ratio Preamp output impedance Tape output impedance Headphones output impedance Treble control Bass control
2 ref. 8, 50Hz 20Hz - 20kHz 3Hz/70kHz R and C ref. rated power A weighted; ref. 1W A weighted; ref. rated power
Physical Specifications Dimensions (W x H x D) Net weight Shipping weight Power consumption 17.125" x 4.375" x 11.5" (435 x 110 x 290mm) 16.5lbs (7.5kg) 19.8lbs (9kg) 230W
Appearance and features are tentative. NAD reserves the right to change specifications or design at any time without notice. All specifications are those in effect at time of printing. Printed in Canada.

C350 Stereo Integrated Amplifier
60W x 2 Continuous Power into 8 ohms 135W, 190W, 240W IHF Dynamic power into 8, 4 and 2 ohms, respectively Impedance Sensing Circuit (ISC) topology Full System Remote control including Stand-by/Off Headphones socket Relay Input Switching Toroidal Power transformer 7 Line inputs, including two tape in/outs All discrete circuitry Short signal path from input to output All sockets Gold plated Tone controls defeat switch Main-amp input & 2 pre-amp outputs Soft ClippingTM NAD Link 12 volt trigger output
NAD has always had a formidable reputation when it comes to quality, budget amplifiers. The NAD 3020 in its various guises, and more recently the NAD C320 and C340 all have received world-wide accolades for their outstanding musical performance and superb value. As an encore NAD is proud to present a new amplifier, further enhancing that reputation: the C350.

Features:

control circuits can be completely bypassed by using the tone defeat switch. The C350 also incorporates NAD's acclaimed switchable "Soft Clipping" circuit, which significantly reduces the risk of damage to loudspeakers due to prolonged high power operation.
Design: Impedance Sensing Circuit (ISC):
The C350 is fully remote controlled and comes supplied with the NAD C Series system remote control. As the C350 has NAD Link the remote control will also operate many other NAD products such as CD players, tuners, etc. Flexibility is another NAD strong point. The C350 has 7 line inputs (including 2 tape in/outputs with dubbing facility) and the pre-amplifier section can be separated from the power amplifier for easy upgrades or adding ancillary equipment. Thus the C350 can be expanded to meet future system needs. The C350 sports 2 pre-amp outputs: Many systems benefit from the use of multiple power amplifiers for "Bi-Amping" (using separate power amplifiers to drive the bass and treble section of a loudspeaker). With the second Preout 2 facility an extra power amplifier, such as NAD's forthcoming C270 which has identical amplification factor (gain) as the C350's power amp section- is easily connected. For remote on/off switching of ancillary components in a system, such as power amplifiers or active speakers, the C350 is equipped with a 12V-trigger system. When switching the amplifier on, the 12V- trigger output is also activated which in turn can activate a 12V-trigger input and switch on the remote devices. Besides the 12V-trigger, the C350 also has an AC switched outlet (North American version only) so you can easily switch your entire system on or off with the remote control or from the front panel. It is fashionable to omit tone controls nowadays: However, provided that the tone controls are properly designed, they can be really useful tools in making improvements to the overall sound. The C350 tone controls only work at the frequency extremes leaving the critical mid-band essentially unaltered. The tone
The C350 also benefits from NAD's proprietary Impedance Sensing Circuit (ISC) topology, now well established and used throughout the NAD product range notably in the highly reviewed models such as the C320 and C340. The ISC topology allows the C350 to deliver maximum performance under virtually any circumstance, independent of the loudspeakers it is driving. The circuitry automatically senses the impedance characteristics of the loudspeaker and will then adjust its power supply settings to best cope with that specific load. This also gives it an unusual characteristic compared to traditional amplifiers when measuring its continuous output power; the RMS output power remains the same at 60 Watts with either an eight or four ohms load. This is not unusual for NAD however. NAD takes a stance to the mindless "brochure power" approach which doesn't give a realistic indication of an amplifier's true capabilities. Instead, the ISC topology is a practical approach to enable an amplifier to easily deal with dynamics and difficult loads. More meaningful are the C350's dynamic capabilities; up to 240 Watts into 2 ohms and up to 55 amps peak current capability! Other design features include relay input switching (located right behind the input sockets for short signal paths) and the large Toroidal transformer (less mechanical hum and stray magnetic field). The generous power supply and over-specified output devices further lead to low noise and low distortion for the entire amplifier. Like all the other in- and output sockets, the Preout/Main-in sockets are gold plated for long-term contact reliability. The headphone socket will drive virtually any non-electrostatic headphone.

PROVISIONAL SPECIFICATIONS - NAD C350

Power Amp Section

Continuous Average Power Output into 8 Rated distortion (THD 20Hz-20kHz)) Clipping power (max. continuous power per channel) IHF dynamic headroom at 8 IHF dynamic power
(Min. power per channel, 20Hz - 20kHz both channels driven with no more than rated distortion)
60W (17.8dBW) 0.03% 70W(18.5dBW) 3.5dB 135W (21.3dBW) 190W (22.8dBW) 240W (23.8dBW) >150 20k / 470pF 770mA 29dB +/-0.3dB -3dB >96dB >114dB
Damping factor Input impedance Input sensitivity Voltage gain Frequency response Signal/noise ratio
2 (ref. 8 , 50Hz) R and C ref. rated power 20Hz-20kHz 3Hz/70kHz A weighted; ref. 1W A weighted; ref. rated power
Overall Line in, Speaker out
Sensitivity; max vol. re. rated power Signal/noise ratio Signal/noise ratio THD from 0.25W to rated power

Pre-amp Section

Line Level Inputs

ref 1W ref rated power

250mV >96dB >114dB <0.03%
Input impedance Input sensitivity Frequency response

Line Level Outputs

R and C ref. rated power 20Hz-20kHz
50k / 320pF 325mV +/-0.3dB 100 Z Source + 1k 220 >106dB Yes
Pre-amp fixed output Tape Phones Signal/noise ratio re 0.5V in and 0.5V out Remote control

Physical Specifications

Dimensions (W x H x D) Net weight Shipping weight
17 1/8 x 3 15/16 x 11 7/16" (435 x 100 x 290mm) 15.45 lbs (7.01kg) 19.0 lbs (8.62kg)
NOTE: NAD Electronics International reserves the right to change specifications or features without notice as design improvements are incorporated. NAD is a registered trademark of NAD Electronics International. All rights reserved. No part of this publication may be reproduced, stored, or transmitted in any form whatsoever without the written permission of NAD Electronics International. Printed in Canada. NAD Electronics International 02/01.