Accuphase A-48 Stereo Power Amplifier

Featuring a six-fold parallel push-pull architecture with power MOS-FETs, as well as ideal gain allocation realized with discrete semiconductors in an instrumentation amplifier configuration, the A-48 harnesses a wealth of advanced technology. 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.

• 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