Accuphase P-300V Power Amplifier Trade-In

This pre-main amplifier is based on the push-pull drive of all amplification stages and is composed entirely of cascode connection with excellent high-frequency characteristics up to the drive stage.

Following the original P-300, the model has been changed to P-300S, P-300X, P-300L, and P-300V. In the fifth generation, an ultra-low impedance drive capable of withstanding 1 Ω load and a more complete balanced input circuit have been realized.

The output stage consists of 10 parallel wide-band transistors with collector loss Pc of 130W for a total of 20 transistors.
As a result, the total Pc is 2600W per channel, and when the power efficiency of the output stage is assumed to be 70%, the theoretical limit output reaches 3700W. This structure allows linear high-quality power to be sent even at low load impedance.
Since 20 transistors are configured in 10 parallel, it can cope with a large current under a low impedance load and can drive even at a low impedance of 1 Ω.