Audio Research REF750

Monoblock Amplifier Pair

$55,000.00 $17,500.00

1 in stock


The Reference 750 is prepared to deliver 750 watts of power into speaker loads of 4, 8 and 16 ohms. This is achieved by the use of a massive, custom-built power transformer delivering current from sixteen KT120 vacuum tubes. Thanks to extensive testing and strict selection of tubes, the amplifier requires little maintenance and obviates the need for costly and sonically deleterious automatic bias systems. Power supply regulation is also achieved by vacuum tube with a 6550WE and 6H30 driver. The bulk power supply energy storage has been increased to 1300 joules, a 30% increase over the preceding REF610T. Tube bias is controlled by two KT120 tubes, each driving a bank of eight tubes. About this product Fantastic condition pair of Audio Research Reference 750 Monoblock Amplifiers in Silver Finish. Amps come in Audio Research boxes with printed manual and power cords. Amps are rated 8/10 for minor cosmetic wear including a few small finish scuffs (see photos).

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