Accuphase A-300 Mono Power Amplifier

Created to mark their 50th anniversary, the Accuphase A-300 redefines the ideal for Class A power amplifiers. 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. The fully discrete balanced input amplifier achieves a level of quietness that will make you forget you are using audio equipment for reproduction. The Accuphase A-300’s unmatched expressiveness lets you enjoy the most exquisite pieces from the world’s greatest composers.

Technical Specifications 

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
Aluminium hairline finish top plate