Accuphase E-480

The Accuphase E-480 may very well be the last integrated amp you will ever need. 

Internally, the preamplifier and power amplifier sections are kept entirely separate, in order to allow each to develop their full potential, rivalling the performance and sonic excellence of separate type components. 

The power supply uses massive, high efficient toroidal transformers for a robust, reliable power supply to the speakers. 

The revolutionary AAVA volume control allows the signal to travel without passing through variable resistors, ensuring ultimate performance without the effects of impedance changes. This also ensures excellent reliability, as there are less parts that are subject to deterioration.

The Accuphase E-480 preamplifier section features the latest implementation of AAVA volume control for further enhanced clarity. Instrumentation amplifier principle in power amplification stage allows fully balanced signal transmission and realizes top-notch S/N ratio. Balanced Remote Sensing enables low impedance of output circuitry, resulting in a damping factor of 600. Power amplification stage uses power MOS-FETs in triple parallel push-pull configuration, delivering 180 watts into 8 ohms for dynamic music enjoyment.

AAVA is a revolutionary type of volume control that completely does away with any variable resistors in the signal path, using instead a  combination of 16 V-I converter amplifiers with different gain. Because the music signal is not being attenuated by a rotary resistor, optimum S/N ratio and low distortion can be maintained over the entire volume range. The signal degradation and impedance changes of conventional designs are a thing of the past. In the E-480, the V-I converter amplifiers for the highest gain stage use four parallel circuits, providing ample operation leeway and ensuring high reliability and stability.