Cambridge Audio Azur 851A Integrated Class XD Amplifier - Black

[Music] the 851 a is our new flagship integrated amplifier we've taken a proven class-leading amplifier in the shape of our 840 a and made it even better the 850 won eight runs our proprietary Class XD amplification which is designed to eliminate crossover Distortion at low signal levels it combines the fantastic sound and low distortion of Class A with the efficiency and convenience of Class A B thus giving you the best of both worlds it also uses a new balanced volume topology which is controllable in 1 DB steps giving very fine control and superbly accurate channel balance we use a huge toroidal transformer to drive the power amplifier stage we then use a second totally separate toroidal transformer just to drive the preamp stage effectively making the 851 a a pre and power amp combo in one box the transformer is the part that provides power to the unit most manufacturers prefer to u