Cambridge - 851A Silver Solid state integrated amplifier





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Holds dual bachelor's degrees in electronics and physics with 20 years in audio engineering.
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Description from the seller
Cambridge Audio is generally seen as a serious British hi‑fi brand with a strong “audiophile but affordable” image, rather than as extreme ultra‑luxury gear.
-EISA Award: Won “Best Product Two-Channel Stereo System” for the 851C/851A combination, highlighting its performance as a top hi-fi pairing 2012-2013
-TONEAudio Exceptional Value Award: Recognized alongside the 851C in 2013 for outstanding value and sound quality in its class
-What Hi-Fi?, Stereophile, and others praised the 851A’s Class XD amplification, power (200W/ch into 8 ohms), and musicality, positioning it as Cambridge’s flagship integrated amp of its era
Amplification
- Class XD
- 2 × 120 W (8 ohms)
- 2 × 200 W (4 ohms)
- Frequency response: 10 Hz – 50 kHz (±1 dB)
- Signal-to-noise ratio: > 93 dB
- Damping factor: > 110 at 1 kHz
- Input impedance (RCA and XLR): 20 kΩ
Features
- LCD display
- Separate winding transformers for both channels (left and right), configured in dual mono with diode bridges and filtering
- Output stage using Sanken power transistors with external emitter resistors for reduced thermal variations and improved current capacity
- ALPs volume potentiometer for more precise balance and stereo imaging at low volume (1 dB increments)
- Enhanced CAP5 protection device for better performance at high volume
- New low-loss electrolytic and polypropylene capacitors
- EnergyStar certified for ultra-low standby consumption ( W)
- Completely new chassis design with brushed aluminum front panel
Tone Controls
- ±10 dB at 100 Hz
- ±7.5 dB at 20 kHz
Connectivity
- Speaker outputs A/B
- 7 stereo RCA audio inputs
- 2 stereo XLR audio inputs
- 1 REC input
- 1 REC output
- 1 Pre Out output
- 1 front-panel headphone jack
- Bus Control (In/Out)
- IR remote control input in aluminium
- Detachable power cable
- Original Box (Without foams) Will be very much protected.
General
- Maximum power consumption: 800 W (0.5 W in standby)
- Dimensions (H × W × D): 115 × 430 × 385 mm
- Weight: 15 kg
Note: The amplifier has been reviewed and the card of the volume control has been replaced.
All decorative objects visible in photos are NOT included in the sale - only the Amplifier and its original accessories as listed above.
Cambridge Audio is generally seen as a serious British hi‑fi brand with a strong “audiophile but affordable” image, rather than as extreme ultra‑luxury gear.
-EISA Award: Won “Best Product Two-Channel Stereo System” for the 851C/851A combination, highlighting its performance as a top hi-fi pairing 2012-2013
-TONEAudio Exceptional Value Award: Recognized alongside the 851C in 2013 for outstanding value and sound quality in its class
-What Hi-Fi?, Stereophile, and others praised the 851A’s Class XD amplification, power (200W/ch into 8 ohms), and musicality, positioning it as Cambridge’s flagship integrated amp of its era
Amplification
- Class XD
- 2 × 120 W (8 ohms)
- 2 × 200 W (4 ohms)
- Frequency response: 10 Hz – 50 kHz (±1 dB)
- Signal-to-noise ratio: > 93 dB
- Damping factor: > 110 at 1 kHz
- Input impedance (RCA and XLR): 20 kΩ
Features
- LCD display
- Separate winding transformers for both channels (left and right), configured in dual mono with diode bridges and filtering
- Output stage using Sanken power transistors with external emitter resistors for reduced thermal variations and improved current capacity
- ALPs volume potentiometer for more precise balance and stereo imaging at low volume (1 dB increments)
- Enhanced CAP5 protection device for better performance at high volume
- New low-loss electrolytic and polypropylene capacitors
- EnergyStar certified for ultra-low standby consumption ( W)
- Completely new chassis design with brushed aluminum front panel
Tone Controls
- ±10 dB at 100 Hz
- ±7.5 dB at 20 kHz
Connectivity
- Speaker outputs A/B
- 7 stereo RCA audio inputs
- 2 stereo XLR audio inputs
- 1 REC input
- 1 REC output
- 1 Pre Out output
- 1 front-panel headphone jack
- Bus Control (In/Out)
- IR remote control input in aluminium
- Detachable power cable
- Original Box (Without foams) Will be very much protected.
General
- Maximum power consumption: 800 W (0.5 W in standby)
- Dimensions (H × W × D): 115 × 430 × 385 mm
- Weight: 15 kg
Note: The amplifier has been reviewed and the card of the volume control has been replaced.
All decorative objects visible in photos are NOT included in the sale - only the Amplifier and its original accessories as listed above.
