The 851W is our flagship power amplifier, with immense power and incredibly low distortion. It’s perfectly matched to partner our 851E pre-amplifier and 851N
network player; taking their pure signal and amplifying it with huge presence and authority.
You’ll re-discover your favourite music in a quality that you’ve never heard before.
Rather than use a Class A design, which is sonically brilliant but generates vast amounts of heat, or a Class AB design, which is efficient but sonically limited, we
developed our own Class XD amplifier design which the 851W takes advantage of. This has the sonic purity of Class A and the efficiency of Class AB for the best of
both worlds. For more information on our unique patented Class XD technology watch the video at the bottom of the page or click here for a full description.
TERRAPIN BUFFERING | POWER AND CONTROL | FLEXIBLE CONFIGURATION | CAP 5 PROTECTION
POWER OUTPUT – STEREO/MONO 200W per channel into 8 Ohms 350W per channel into 4 Ohms
POWER OUTPUT – BRIDGED MONO 500W 8 Ohms 800W 4 Ohms
THD (UNWEIGHTED) < 0.001% 1 kHz < 0.005% 20 Hz - 20 kHz
FREQUENCY RESPONSE 5Hz – 80kHz
S/N RATIO (REF 1W / 8 OHM) >90dB (unweighted)
SENSITIVITY – STEREO OR MONO 1.5V rms unbalanced 1.5 + 1.5V rms balanced
SENSITIVITY – BRIDGED MONO 0.775V rms unbalanced 0.775V + 0.775V rms
INPUT IMPEDANCES Balanced input 38 kOhm Unbalanced input 68 kOhm
POWER AMP DAMPING FACTOR > 110 at 1 kHz
MAX. POWER CONSUMPTION 2400W
STANDBY POWER CONSUMPTION Standby <0.5W
COLOUR Black or silver
DIMENSIONS (HXWXD) 148 x 430 x 365mm