Accuphase A-48 Class-A Stereo Amplifier

The Accuphase A-48 Class-A stereo amplifier harnesses a wealth of advanced technology and features a six-fold parallel push-pull architecture with power MOS-FETs. Its outstanding performance is exemplified by a signal/noise ratio of 117 dB, output of 360 watts into 1 ohm (music signals), and a damping factor of 800. The newly designed output protection circuit can detect any short-circuiting of the speaker terminals, for complete peace of mind. This power amplifier is the ultimate instrument for immersive music appreciation on the highest level.

Technical Specifications 

Power MOS-FETs in 6-parallel push-pull configuration
Linear output characteristics over entire load impedance range
Strong power supply with massive toroidal transformer and large 60,000 μF filtering capacitors
Instrumentation amplifier principle
High-gain signal input section in discrete configuration
Dedicated power supply for signal input section
Polarity switching for balanced input connectors
MCS+ circuit topologys
Current feedback principle in amplification circuitry
Protection circuitry using MOS-FET switches
High damping factor of 800
Speaker output protection circuit guards against short-circuiting
Two sets of large speaker terminals
4-step gain control
Support for bi-amping and bridged mode
Aluminum top plate with hairline finish

Product Brochure

Technical Information