Introduction

Marking Accuphase’s 50th anniversary, the E-5000 is the flagship high-power Class AB integrated amplifier. Its fully balanced signal path—from input through volume control to power output—delivers 240 W into 8 Ω and 320 W into 4 Ω, presenting every musical nuance with authority, clarity, and zero coloration.

Design

Built on a massive, low-resonance aluminum chassis, the E-5000 separates analog and digital power supplies and mounts its toroidal transformer on vibration-damping feet. The preamplifier section employs dual Balanced AAVA™ vari-gain modules per channel for noise-free volume control, while the power amplifier section uses a five-fold parallel push-pull transistor array driven in Class AB to create a perfectly symmetrical, high-current drive stage.

Application

As a true integrated solution, the E-5000 accepts five line-level and two balanced inputs, offers record-loop outputs, and lets you switch stereo to mono or invert channel phase per input. In variable-output mode it can drive power amps or active speakers; in fixed-output mode it serves as a pure line stage. A dedicated headphone amplifier and two expansion slots permit optional DSP or phono modules, making it equally at home in two-channel and studio environments.

Technology Overview

• Balanced AAVA™ Volume Control
  Eliminates all variable resistors from the signal path. Dual AAVA modules per channel vary gain digitally with analog precision, achieving –124 dB equivalent input noise and rock-steady channel matching without grit or hiss.
• Instrumentation-Amp Topology
  The power stage’s instrumentation amplifier architecture accepts balanced signals directly, preserving common-mode rejection and immunity to noise.
• Five-Fold Push-Pull Output
  Parallel power transistors driven in Class AB yield high damping factor (1,000) for tight speaker control, deep bass, and effortless dynamics.
• Robust Power Supply
  A massive toroidal transformer and two 40,000 µF filter capacitors deliver rock-solid voltage under peak demands, keeping distortion below 0.05%.

Key Features

• 240 W/8 Ω, 320 W/4 Ω continuous output; stable into 2 Ω
• Fully balanced signal path from input to speaker binding posts
• Dual Balanced AAVA™ volume modules per channel
• Five-fold parallel push-pull Class AB power transistors
• High-current headphone amplifier with discrete buffer stage
• Five line-level and two balanced inputs; record-loop outputs
• Input-by-input phase and mono switching
• Front-panel –20 dB fast-mute function
• Two rear expansion slots for optional phono or network modules

Specifications

• Power Output: 240 W × 2 into 8 Ω; 320 W × 2 into 4 Ω
• Damping Factor: 1,000 (8 Ω)
• Frequency Response: 5 Hz–100 kHz (–3 dB)
• Total Harmonic Distortion: < 0.05% (1 kHz, rated power)
• Signal-to-Noise Ratio: > 125 dB (A-weighted)
• Volume Control Range: –∞ to +6 dB in 0.5 dB steps; fast-mute to –20 dB
• Inputs: 5× RCA, 2× XLR balanced
• Outputs: 2× RCA record loop, 2× XLR fixed/variable, headphone (¼″ TRS)
• Power Consumption: 600 W max; 60 W idle
• Dimensions: 475 mm W × 150 mm H × 420 mm D
• Weight: 35 kg net; 45 kg shipping

‍