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Accuphase E-4000 Integrated Stereo Amplifier

Sale price$13,575.00

Accuphase E-4000 Integrated Stereo Amplifier is a true marvel of engineering and innovation. Born from the fusion of separate amplifier technologies, this amplifier offers a transformative listening experience. Its preamplifier section incorporates Accuphase's Advanced Analog Volume Control (AAVA) with ANCC, ensuring precise volume adjustments while preserving the vibrancy and integrity of the audio signal. This technology delivers unparalleled clarity and dynamics, allowing every note to resonate with lifelike accuracy.

The power amplifier section of the E-4000 utilizes a balanced transmission design based on the instrumentation amplifier principle, effectively minimizing noise and distortion to imperceptible levels. With a four-fold parallel push-pull configuration of power transistors operating in Class AB, this amplifier extracts every ounce of potential from speakers, resulting in a rich, detailed soundstage filled with subtlety and nuance.


The E-4000 integrated amplifier has emerged from separate amplifier technologies. The preamplifier section features AAVA using ANCC to allow for volume adjustments that maintain high levels of vibrancy. The power amp section employs balanced transmission utilizing the instrumentation amplifier principle to drive noise suppression to its limit. The E-4000 is equipped with a four-fold parallel push-pull configuration of power transistors driven in Class AB in the output stage to extract every last ounce of potential from the speakers and create soundscapes filled with subtlety.


  • Revolutionary AAVA volume control

  • Four-fold parallel push-pull configuration of power transistors driven in Class AB

  • High power output of 180 watts into 8 ohms / 260 watts into 4 ohms

  • The power amplification stage configured as an instrumentation amplifier

  • The high damping factor of 800

  • Strong power supply with massive high-efficiency toroidal transformer

  • High-voltage, large filtering capacitors

  • Protection circuitry using MOS-FET switches

  • Highly reliable logic-control signal-switching relay

  • Current feedback amplification circuit topology assures excellent phase characteristics in high-range

  • Preamplifier output connectors both RCA and Balanced

  • Dedicated, high-quality headphone amplifier

  • Volume attenuator that can instantly reduce sound as low as –20 dB

  • Speaker output selector

  • Tone controls using summing active filters

  • Individual phase setting for each input

  • A stereo signal can be switched to monophonic operation

  • Loudness compensator to adjust audible sonic balance

  • DAC input selector (when DAC-card installed)

  • MC/MM selector (when AD-card installed)

  • Display mode selector

  • Left/right balance control through AAVA

  • Input selector for power amplifier section both RCA and Balanced

  • Recorder selector

  • Five sets of LINE input connectors

  • Speaker output protection circuit guards against short-circuiting

  • Two sets of balanced line inputs

  • Two sets of large speaker terminals

  • Volume display 

  • Sampling frequency display when DAC card installed

  • Highly reliable MOS-FET switches

  • High-carbon cast iron insulators for superior vibration damping