C 275BEE
Stereo power amplifier rated at 2 x 150W into 4 and 8 ohms, with a bridge mode for mono use. Aimed at hi-fi setups that need a dedicated power stage; the model is archived and no longer sold by the maker.
- 2 x 150W continuous into 4 and 8 ohms
- Bridge mode: >330W mono into 8 ohms
- Holmgren toroidal transformer, all-discrete circuitry
- THD <0.008%, S/N >102dB (A-weighted)
- 12V trigger / signal-sensing input (ATOLogic)
- Archived: no longer for sale
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The C 275BEE is a two-channel power amplifier built around a Holmgren toroidal power transformer and all-discrete circuitry. It delivers 150W per channel continuously into 4 and 8 ohms with both channels driven, and over 330W into 8 ohms when bridged to mono. Dynamic power is rated at 250W, 410W and 600W into 8, 4 and 2 ohms.
The design uses Class A voltage stages, a distortion-canceling circuit, the BEE anti-saturation clamp and a PowerDrive circuit, with a short signal path from input to output. Soft Clipping is included, and all sockets are gold-plated. Rated THD is below 0.008% from 20Hz to 20kHz, and signal-to-noise ratio is above 102dB (A-weighted).
On the connectivity side there is a fixed input and a variable input, speaker outputs, and a 12 volt trigger / signal-sensing input for ATOLogic automatic switching. Power comes through a detachable IEC cable, and standby draw is under 1W.
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Specyfikacja
- Marka
- NAD
- Model
- C 275BEE
- Kategoria
- Hi-Fi i audio domowe › Wzmacniacze
Audio
- Continuous power, both channels driven (4 and 8 Ohm)
- >150W (ref. rated THD, 20Hz – 20kHz)
- Continuous power, 8 Ohm, mono bridge mode
- >330W (ref. 20Hz - 20kHz, <0.02% THD)
- Rated THD (250mW to rated power, CCIF IMD, DIM 100)
- <0.008% (ref. 20Hz - 20kHz)
- Clipping power (4 Ohm and 8 Ohm)
- >170W (ref. 1kHz 1% THD)
- IHF dynamic power, 8 Ohm
- 250W
- IHF dynamic power, 4 Ohm
- 410W
- IHF dynamic power, 2 Ohm
- 600W
- Peak output current
- >50A (ref. 1 Ohm, 1ms)
- Signal/Noise ratio
- >102dB (A-weighted, ref. 1W)
- Damping factor
- >180 (ref. 8 Ohm, 50Hz and 1kHz)
- Frequency response
- ±0.1dB (ref. 20Hz - 20kHz)
- Voltage gain
- 29dB
Inputs
- Input impedance (Fixed IN)
- 10 kilohm + 200pF
- Input impedance (Variable IN)
- 100 kilohm + 100pF
- Input sensitivity
- 1.2V (ref. rated power)
- Minimum input level for AUTO TRIGGER
- 10mV at 1kHz
- 12 volt trigger / signal sensing input
- ATOLogic
Power
- Power consumption, normal operation
- 312W (ref. 230V AC 50Hz; 120V AC 60Hz)
- Standby power
- <1W
- Idle power
- <100W
- Time to power OFF at no signal in AUTO mode
- <10 minutes
- Power cable
- Detachable IEC
- Power transformer
- Holmgren toroidal
Physical
- Dimensions, net (W x H x D)
- 435 x 133 x 352mm
- Dimensions, gross (W x H x D)
- 435 x 150 x 396mm
- Net weight
- 32.2 lbs (14.6 kg)
- Shipping weight
- 37.3 lbs (16.9 kg)