Accuphase E-280 Integrated Amplifier

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The Accuphase E-280 takes the integrated amplifier to further heights with performance and sound quality resulting in a capability well beyond its class .The Accuphase E-280 amp approaches the performance of separate type amplifiers and is Soundlines' favorite go to amplifier if you want straight out performance with the exquisite build quality that Accuphase is known for.

The E-280 comes with a dedicated headphone amplifier optimized for sound quality so there is no need of a separate dedicated headphone amplifier, and an EXT PRE button allows separate use of preamplifier and power amplifier sections. The front panel features Numeric indication of volume level with new LED lighting in the Analog meters for improved legibility.

Accuphase E-280 Integrated Amplifier


AAVA volume control with further lowered noise floor

The volume control in the preamplifier section is a crucial component with a decisive influence on performance and sound quality. AAVA is a revolutionary type of completely analog volume control that completely does away with any variable resistors in the signal path. This ensures that the signal remains perfectly unaltered, free from the adverse effects of impedance changes. As a result, both S/N ratio and sound quality are excellent at any volume setting.

Accuphase AACA volume control

Highly efficient power supply with large transformer and large-capacity filter. 

The E-280 uses a massive power transformer with high output capability. Highly effective filtering is via two custom-made aluminum electrolytic capacitors, each with a vastly increased 30,000 μF rating.

Accuphase E-280 power transformer

Powerful Amplification

Parallel push-pull output stage and power amplifier stage mounted on large heat sink. Two identical units are arranged on the left and right sides of the chassis.Power amp units use high-power transistors in a robust parallel push-pull configuration, producing ample output of 120 watts into 4 ohms or 90 watts into 8 ohms per channel.

Accuphase E-280 power amplifier stage

Option Boards

The Accuphase E-280 now offers two rear panel expansion slots that allow for use of AD-50 (phono preamplifer) or DAC-50 (digital to analogue converter) option boards. These truly make the E-280 an amplifier for life. Additional inputs are easliy added as they become available.

Accuphase E-280 Integrated Amplifier option boards


Continuous Average Output Power (both channels driven, 20-20,000 Hz): 120 watts per channel into 4 ohms, 105 watts per channel into 6 ohms, 90 watts per channel into 8 ohms

Total Harmonic Distortion (both channels driven, 20-20,000 Hz): 0.05% with 4 to 16-ohm load

Intermodulation Distortion: 0.01%

Frequency Response: HIGH LEVEL INPUT/POWER INPUT 20 - 20,000 Hz +0, -0.5 dB (for rated continuous average output), 3 - 150,000 Hz +0, -3.0 dB (for 1 watt output)

Damping Factor: 500 (For rated output with 8-ohm load, 50 Hz)

Output Voltage, Output Impedance (at rated continuous average output): PRE OUTPUT: 1.07 V, 50 ohms


Tone Controls Turnover frequency and adjustment range: BASS: 300 Hz ±10 dB (50 Hz), TREBLE: 3 kHz ±10 dB (20 kHz)

Loudness Compensation: +6 dB (100 Hz)

Attenuator: -20 dB

Power Level Meters: Logarithmic compression, peak reading meters, output dB and % scale

Load Impedance: 4 - 16 ohms

Stereo Headphones:Suitable impedance: 8 ohms or higher

Power Requirements: AC 230 V 50 Hz (Voltage as indicated on rear panel)

Power Consumption: 46 watts idle 245 watts in accordance with IEC 60065

Maximum Dimensions: Width 465 mm x Height 151 mm x Depth 420 mm

Mass: 20.0 kg net, 26.0 kg in shipping carton

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