Introduction to the P1000 Circuit:
P1000 was the breakthrough work of Accuphase, which became the "leader" of the Japanese HIFI Hi-end amplifier circle in one fell swoop, establishing Accuphase's position as the number one in Japan. The newly released A100, 7100, and other models are all extensions of P1000. The basic principles of circuit design, material structure, and appearance are basically the same.
This power amplifier board is designed with reference to the P1000 machine circuit.
P1000 was released in June 1999 and won a gold medal in the selection list of the 133rd issue of the Japanese magazine STERE0S0UND from 1999 to 2000
Comment from Japanese judges: After long-term research, the birth of a new Accuphase has been achieved, with excellent craftsmanship, high reliability, and professional style, allowing people to enjoy a sexy and musically enjoyable sound.
The original output transistor of the P-1000 power amplifier is 2SC5242/2SA1962, with Pc=130W and Ic=15A. This board has been upgraded to a metal sealed transistor for better dynamic performance and higher density. The circuit adopts current feedback technology, which has low distortion, high dynamics, fast speed, strong explanatory power, and excellent details. The feedback adopts servo circuit, full DC architecture, and low-frequency delay diving is very good.
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PCB material: double-sided gold plating
PCB size: 188x145mm
Supply voltage: AC24X2 to AC38X2
Output power: 200W-4 ohms, 130W-8 ohms
Frequency response: 5HZ-10KHZ. （+-3DB）
Input sensitivity: Rear stage 2V
Input impedance: 20K ohms.
S/N signal-to-noise ratio:>100DB
