Accuphase E-800 Class-A Precision Integrated Stereo Amplifier

Features

Balanced AAVA Type Volume Control

AAVA performs volume adjustment by making use of a combination of 16 current signals with different magnitude, thereby eliminating signal degradation and impedance fluctuations and maintaining high S/N ratio and low THD over the entire volume range. In the Balanced AAVA implementation of the E-800, two AAVA circuits are driven in a fully balanced configuration with a superior capability to eliminate external noise.

Formidable Power Amplification Stage

The power amplification circuitry mounted directly on a large heat sink employs a six-fold parallel push-pull configuration of power MOS-FETs driven in Class A. Two identical units arranged on the left and right sides of the chassis deliver impeccable power in a linear progression for the two channels: 50 watts into 8 ohms, 100 watts into 4 ohms, and 200 watts into 2 ohms. The amplifier can even supply 300 watts into 1 ohm (music signals).

Power Supply Circuitry Designed For Optimum Stability

The strong power supply with massive high-efficiency toroidal transformer and two large 60,000 μF filtering capacitors ensures a stable current supply at all times

High Damping Factor Brings Out The Full Musical Potential Of Loudspeakers

Features such as Balanced Remote Sensing and MOSFET switches help to realize a damping factor of 1000. Superb motion control lets every loudspeaker perform at its very best.

Balanced I/O

Integrated amplifier with fully balanced configuration extending from input to output.

Specifications

Continuous Average Output Power (both channels driven, 20-20,000 Hz): 300 watts per channel into 1 ohm,  200 watts per channel into 2 ohms, 100 watts per channel into 4 ohms, 50 watts per channel into 8 ohms.

Intermodulation Distortion: 0.01%g

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: 1000 (For rated output with 8-ohm load, 50 Hz)

Output Voltage, Output Impedance (at rated continuous average output): PRE OUTPUT: 1.23 V, 50 ohms

Gain: HIGH LEVEL INPUT →　PRE OUTPUT : 18 dB, POWER INPUT →　OUTPUT: 28 dB

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/% scale

Load Impedance: 4 - 16 ohms

Stereo Headphones: Suitable impedance: 8 ohms or higher

Power Requirements: AC 120 V/220 V/230 V 50/60 Hz (Voltage as indicated on rear panel)

Power Consumption: 180 watts idle 390 watts in accordance with IEC 60065

Maximum Dimensions: Width 465 mm x Height 171 mm x Depth 422 mm

Mass: 36 kg net, 45 kg in shipping carton