Accuphase A-300 Monophonic Power Amplifier

Product Overview

20-parallel push-pull power MOS-FETs in the output stage improves performance by 25% over conventional models with outputs of 125 W into 8 ohms, 250 W into 4 ohms, 500 W into 2 ohms, and 1,000 W into 1 ohm that set the stage for enviable constant-voltage drive.

Class A driven output stage with 20-parallel push-pull power MOS-FETs

Large linear output 125 W / 8 ohms, 250 W / 4 ohms, 500 W / 2 ohms, 1,000 W / 1 ohm

Instrumentation amplifier principle

Current feedback amplification circuits

Balanced Remote Sensing

Double MCS+ circuit

High damping factor of 1,000

Speaker output protection

Highly reliable MOS-FET switches with no mechanical connections

Signal input section with a fully discrete configuration for low noise

Highly responsive large-scale bar graph power meter

Connecting two pairs of A-300 supports bi-amping and bridged mode connection

4-step gain control

High capacity 100,000 μF filtering capacitors

Large speaker terminals connected directly to protection circuitry

High-carbon cast iron insulator feet with superior damping characteristics

Power amplification section on circuit boards using glass cloth fluorocarbon resin

Aluminum hairline finish top plate

Useful Documents