Audiologica Ltd: Company Registration Number : 6632457    VAT Registration Number: 892 5261 02

Power Amp

Continuous average power output into 8ohms >150 W (ref. rated THD, 20 Hz – 20 kHz)

Rated distortion (THD 20Hz-20kHz) <0.008 % (ref. 20 Hz - 20 kHz)

Clipping power (max cont. power/channel) >170 W (ref. 1 kHz 1% THD)

IHF dynamic power 8 ohms 250 W

4 ohms 410 W

2 ohms 600 W

Damping factor >180 (ref. 8 Ω, 50 Hz and 1 kHz)

Input impedance R and C 100 kΩ + 100 pF

Input sensitivity (for rated output into 8 ohms) 1-2v (ref. rated power)

Voltage gain 29 dB

Signal to noise ratio, A-weighted ref. 1W >102 dB (A-weighted, ref. 1 W)

ref. rated power >123 dB (A-weighted, ref. 150 W)

Bridged (Monophonic) Mode

IHF dynamic power 8 ohms 800 W

4 ohms 1200 W

Physical Specification

Dimensions (W×H×D) Imperial 17 1/8” x 5 1/4” x 13 3/4”

Metric 435 x 133 x 352 mm

Gross Dimensions (W×H×D) Imperial 17 1/8” x 6” x 15”

Metric 435 x 150 x 378 mm

Net Weight Imperial 32.2 lbs

Metric 14.6 kg

Shipping Weight Imperial 37.3 lbs

Metric 16.9 kg

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 you’ll ever encounter. Power goes from 150W x 2 to over 400W x 2! This also has the additional benefit 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 NAD’s ATOLogic circuit which includes both a 12V-trigger system and signal-sensing turn ON option. This extra level of flexibility 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 benefits from NAD’s proprietary PowerDrive circuit topology, now well established and used throughout the NAD product range. The PowerDrive topology allows the C275BEE 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. PowerDriveTM topology is a practical approach to enable an amplifier to easily deal with musical dynamics and difficult 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 amplifier 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 amplifier 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 specifies 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.

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