Description
Accuphase A-80
The A-80 is a Class A power amplifier developed as a stereo amplifier version of our 50th anniversary A-300 model. Optimizing the 10-parallel push-pull power MOS-FETs in the output stage produces an output power of 65 W into 8 ohms, 130 W into 4 ohms, 260 W into 2 ohms, and 520 W into 1 ohm. Rigorous investment into new, cutting-edge noise reduction technologies has achieved a sense of presence and minute expression that rival live performances. The A-80 power amplifier perfectly fuses modern technology with the wealth of knowledge Accuphase has amassed in its pursuit of perfect sonic expression.
The A-80 has an intense power supply, a massive special-made high-efficiency toroidal transformer, and two sizeable 120000μF special-made filtering capacitors in the unit’s center.
The filtering capacitors have the largest capacity of any Accuphase product.
The A-80 improves the Class-A operation area by 8% over the A-75 as 65W into 8Ω load.
The former model A-75 has excellent noise performance; however, the A-80 achieves even 7% lower guaranteed output noise voltage than the former model.
Accuphase A-80 specifications:
- 65 W into 8 ohms, 130 W into 4 ohms, 260 W into 2 ohms,and 520 W into 1 ohm large linear output power
- Class A driven 10-parallel push-pull MOS-FET output stage
- Instrumentation amplifier
- Signal input section with a fully discrete configuration for low noise
- Current feedback amplification topology
- Balanced remote sensing
- MCS+ circuitry
- High damping factor of 1,000
- Large, high-efficiency toroidal transformer
- High capacity 120,000 μF filtering capacitors
- Power amplification section on circuit boards using glass cloth fluorocarbon resin
- Hold time switching function that changes the meter peak display time
- 4-step gain control
- Bi-amping connection and bridged connection switching
- Large speaker terminals connected directly to protection circuitry
- Speaker output protection circuit guards against short-circuiting
- Highly reliable MOS-FET switches with no mechanical
- Aluminum hairline finish top plate
- High-carbon cast iron insulator feet with superior damping characteristics
