Accuphase E-5000 Integrated Amplifier - As Traded

The Accuphase E-5000 flagship high-power Class AB integrated amplifier was developed to mark Accuphase's 50th anniversary. 

E-5000 features a fully balanced circuit configuration from the input stage to the power amplifier output. The preamplifier section employs Accuphase’s Balanced AAVA (Analog Vari-gain Amplifier) volume control. 

The power amp section uses five-fold parallel push-pull bipolar power transistors operating in Class AB. A damping factor of 1,000 is achieved through a combination of low-impedance circuit design and Balanced Remote Sensing.

The power supply is a large toroidal transformer and two 40,000 μF filtering capacitors. 

Separate left and right power amplifier modules reduce crosstalk, while speaker protection is managed by low-resistance MOS-FET switches rather than conventional mechanical relays. Additional protection circuitry detects speaker-terminal short circuits and monitors heatsink temperature.

E-5000 offers five line-level inputs, two balanced inputs, recorder input and output connections, and both balanced and unbalanced preamplifier outputs. It can also be configured for separate preamplifier and power amplifier operation, with two expansion slots accommodating optional digital input or analogue phono boards. 

A discrete-component headphone amplifier is great for late night listening with that classic Accuphase sound, while tone controls, a loudness compensator, mono operation are accessible via the front panel.

The large, backlit analogue power meters are mesmerising. 

Power output: 240 watts per channel into 8Ω (stereo)
Frequency response: 3Hz to 150kHz
Total harmonic distortion: 0.05%
Damping factor: 1000
Input sensitivity: 220mV (line)
Signal to noise ratio: 111dB (line)
Output: 1.74V (Pre out)
Speaker load impedance: 4Ω to 16Ω
Dimensions: 465 x 211 x 502mm
Weight: 33.8kg