Nad C 275 BEE Brochure
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Features While 150W is very powerful for home use, there can never be too much power if you like your music loud and clear. An option to add more power in the future is to bridge the C 275BEE and add a matching C 275BEE for one of the most powerful home audio systems youll ever encounter. Power goes from 150W x 2 to over 400W x 2! This also has the additional bene t of being dual mono, meaning each channel and each speaker is totally isolated from the effect of the other. The C 275BEE is equipped with NADs ATOLogic circuit which includes both a 12V-trigger system and signal-sensing turn ON option. This extra level of exibility makes it easy to integrate the C 275BEE into automated control systems or simply enjoy the extra convenience of auto turn ON. Consumption is a very low <1W when in Standby mode. Design: PowerDrive The C 275BEE also bene ts from NADs proprietary PowerDrive circuit topology, now well established and used throughout the NAD product range. The PowerDrive topology allows the C 2 75BEE 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 speci c load. PowerDrive TM topology is a practical approach to enable an ampli er to easily deal with musical dynamics and dif cult speaker loads. Thus we have the highly desirable characteristics of high dynamic power and low impedance drive capability in one affordable package. Getting high dynamic power from the power supply to your loudspeaker requires a fast wideband ampli er stage rugged enough to pass and control high peak currents without premature protection intervening. The safe operating limit for the C 275BEE has 4 times the capacity of the typical ampli er in this price range by using 4 pairs of 220W output transistors per channel. The C 275BEE has the lowest levels of distortion and noise available in its price class and is easily capable of embarrassing far more expensive products. To prove it NAD uses Full Disclosure Power, the most demanding criteria for performance measurement. FDP speci es distortion under the most extreme conditions of low impedance loads and frequency extremes rather than the simple and easy 1kHz @ 8 Ohms test quoted by many of our competitors. We use this stricter performance criterion because it more closely matches the demands of real music and real loudspeakers. Maintaining speci ed distortion at 4 Ohms and at 20Hz and 20kHz is several orders of magnitude more dif cult to achieve than the simple 8 Ohms and 1kHz test. NAD also takes a stand against the meaningless brochure power touted by many of our competitors by offering Full Disclosure power specs. We specify minimum continuous power, across the entire audible range of frequencies, at rated distortion, for both 8 and 4 Ohms with all channels driven simultaneously. Perhaps even more importantly, we also specify Dynamic Power at 8, 4, and even 2 Ohms, which better describes the way the ampli er will perform in the real world, with musical signals and reactive loudspeaker loads. Less Distortion = More Music Noise and distortion mask the ne details of a musical recording robbing musical texture and dimension and replacing them with non-musical artifacts. NAD has spent the last 35 years perfecting our designs to have the lowest distortion and highest power in its price class. This cannot be overstated! Our competitors often rate distortion at only 80% of rated power, and even then cant match our very conservative spec of 0.008% at any frequency within the range of human hearing. Our noise spec is often 10dB (100 times!) less than that of competing ampli ers. This is far from a trivial difference as ne detail and nuance (micro dynamics) are often obscured by noise in lesser ampli ers, robbing a performance of that illusive sense of realism. It is that exciting feeling of being there at the live performance. But even the most carefully reported specs cannot fully describe the sonic performance of an ampli er. Only your own ears can nally judge our achievement. We urge you to listen and compare NAD to other products in its price range, and even higher. We dont think youll nd anything that comes close to offering the C 275BEEs overall musical satisfaction, well-rounded performance, and stellar value for money. > DETAILS NAD Electronics International reserves the right to change specifi cations or features without notice. NAD is a registered trademark of NAD Electronics International. All rights reserved. No part of this publication may be reproduced, stored, or tr ansmitted in any form whatsoever without the written permission of NAD Electronics International. © 10/08 NAD Electronics International. www.NADelectronics.com
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C 275BEE Stereo Power Amplifier > SPECIFICATIONS Overall Specifications Fixed IN, Speaker OUT Continuous output power into 8 Ω and 4 Ω (both channels driven) >150 W (ref. rated THD, 20 Hz – 20 kHz) Continuous output power into 8 Ω (Mono, Bridge mode) >330 W (ref. 20 Hz - 20 kHz, <0.02% THD) Rated THD (250 mW to rated power, CCIF IMD, DIM 100) <0.008 % (ref. 20 Hz - 20 kHz) Clipping power (4 Ω and 8 Ω) >170 W (ref. 1 kHz 1% THD) IHF dynamic power 8 Ω 250 W 4 Ω 410 W 2 Ω 600 W IHF dynamic power (Bridge mode) 8 Ω 800 W 4 Ω 1200 W Peak output current >50 A (ref. 1 Ω, 1 ms) Signal/Noise ratio >102 dB (A-weighted, ref. 1 W) >123 dB (A-weighted, ref. 150 W) Damping factor >180 (ref. 8 Ω, 50 Hz and 1 kHz) Frequency response ± 0.1 dB (ref. 20 Hz - 20 kHz) 3 Hz - 100 kHz (ref. -3 dB) Input impedance (Fixed IN) 10 kΩ + 200 pF Input impedance (Variable IN) 100 kΩ + 100 pF Input Sensitivity 1-2v (ref. rated power) Voltage gain 29 dB Minimum input level for AUTO TRIGGER 10 mV at 1 kHz Time to power OFF at no signal in AUTO mode <10 minutes Power Consumption Normal operation 312 W (ref. 230V AC 50 Hz; 120V AC 60 Hz) Standby power <1 W Idle power <100 W Dimension and Weight Dimensions (W x H x D) Net 435 x 133 x 352 mm 17 1/8 x 5 1/4 x 13 3/4 Gross 435 x 150 x 378 mm 17 1/8 x 6 x 15 Net weight 32.2 lbs (14.6 kg) Shipping weight 37.3 lbs (16.9 kg) * Gross Dimensions include volume knob / speaker terminals / connectors / feet. Note: Installers should allow a minimum clearance of 2 - 4 inches for wire management. > REAR LINE DRAWING