Accuphase A-80 Class A Stereo Power Amp

Accuphase A-80

Class A Stereo Power Amplifier

The A-80 is a stereo version of the 50th anniversary model A-300, and is a pure Class A stereo power amplifier that pursues reduced output impedance and constant voltage drive to bring out the full potential of the speakers. It is a flagship model. The power amplification stage uses 10 parallel push-pull class A operation using power MOSFETs, achieving linear high power outputs of 65W/8Ω, 130W/4Ω, 260W/2Ω, and 520W/1Ω. In addition, noise performance has been improved by using an “instrumentation amplifier” whose signal input section is composed of a balanced circuit, “ideal gain distribution” between the signal input section and power amplification section, and “MCS+” which is a two-parallel circuit. has been raised to the maximum. Additionally, a damping factor of 1,000 has been achieved by reducing output impedance through balanced remote sensing and semiconductor switches. In addition, it is equipped with a protection circuit that prevents short-circuit accidents of the speaker terminals, so you can use it with confidence.

Please appreciate the alluring sound of A-80 which will be an object of aspiration for the audiophiles.

For pricing please give us a call! Contact details on home page.

For more information on this model head over to Accuphase Laboratory

Category: Electronics Tags: A-80, Accuphase, Accuphase A-80, Power Amplifier, Pure class A Brand: Accuphase Laboratory

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Description
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Description

Accuphase A-80 Class A Stereo Amplifier

Overview

The Accuphase 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 Accuphase A-80 power amplifier perfectly fuses modern technology with the wealth of knowledge Accuphase has amassed in its pursuit of perfect sonic expression.

Features

Class A driven 10 parallel push pull MOS-FET output stage
Instrumentation amplifier
Current feedback amplification topology
Balanced remote sensing
MCS+ circuitry
Meter display switching
Digital power meter display switching
Hold time switching function that changes the meter peak display time
LINE / BALANCED input switching
4-step gain control
Polarity switching of balanced input connectors
Bi-amping connection and bridged connection switching
Signal input section with a fully discrete configuration for low noise
Speaker output protection circuit guards against short circuiting
Large speaker terminals connected directly to protection circuitry
Edgewise coils improve damping factor
Highly reliable MOS-FET switches with no mechanical connections
Large, high efficiency toroidal transformer
High capacity 120,000 μF filtering capacitors
Aluminium hairline finish top plate
Highly responsive large scale bar graph meters and digital power meters
High carbon cast iron insulator feet with superior damping characteristics
Power amplification section on circuit boards using glass cloth fluorocarbon resin

Specifications

Power output: 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
Frequency response: 20Hz to 20kHz
Total harmonic distortion: 0.03%
Damping factor: 1000
Gain: 28 dB
Input sensitivity: 0.91V
Signal to noise ratio: 123dB
Speaker load impedance: 2Ω to 16Ω
Dimensions: 465 x 240 x 515mm
Weight: 44.6kg
Year: 2023

For pricing please give us a call! Contact details on home page.

For information on another mighty Accuphase Class A Amp Try A-300

For more information on the Accuphase A-80 head over to Accuphase Laboratory

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If you have any questions about this product, please don't hesitate to get in touch with us via:

Our address: 1/81 Guthrie St Osborne Park Western Australia 6017
Our phone: 08 9445 2783
Our email: pierre [@] revolutionturntable.com.au OR jim [@] revolutionturntable.com.au

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