Accuphase E-4000 Integrated Amplifier

Product Description

The Accuphase E-4000 Integrated Stereo Amplifier, the 12th-generation successor to the acclaimed E-480, embodies Accuphase’s pursuit of sonic perfection. This Class AB amplifier delivers 180W per channel into 8 ohms (260W into 4 ohms) with a damping factor of 800, ensuring effortless control over any speaker. Featuring Accuphase’s AAVA volume control with ANCC technology, a balanced instrumentation amplifier, and a four-fold parallel push-pull power stage, the E-4000 offers vibrant, noise-free sound with exceptional clarity and dynamics. Its elegant design, complete with large VU meters and a piano black finish, makes it a stunning centerpiece for high-end hi-fi and home theater systems.  

Key Features  

• 180W Class AB Power: Outputs 180W per channel into 8 ohms and 260W into 4 ohms, with linear power delivery for demanding speaker loads.  
• AAVA Volume Control with ANCC: Advanced Noise and Distortion Cancelling Circuit reduces noise by up to 1.5 nV/√Hz, ensuring pure, vibrant volume adjustments without signal degradation.  
• Four-Fold Push-Pull Output: Quad parallel push-pull bipolar transistors in the power stage, inspired by the flagship P-7500, deliver dynamic, distortion-free sound.  
• Ultra-High Damping Factor (800): Enhanced by low on-resistance MOS-FET switches (1.6mΩ) and optimized signal paths, providing precise speaker control and tight bass.  
• Robust Power Supply: Massive toroidal transformer and dual 40,000μF filtering capacitors ensure stable, clean power for high-current demands.  
• Versatile Connectivity: Includes 5 RCA line-level inputs, 2 XLR balanced inputs, pre-out/main-in, and optional boards (DAC-60 for digital, AD-50 for MM/MC phono, Line-10 for high-level input).  
• Advanced Protection: Features DC voltage, over-current, and temperature safeguards with MOS-FET switches for reliable speaker protection without relay contact resistance.  
• Elegant Design: Taller chassis with piano black finish, gold-plated controls, backlit VU meters, and RC-250 remote for a luxurious, user-friendly experience.  
• Phono & Digital Ready: Optional AD-50 phono board with front-panel MC impedance switching and DAC-60 board for USB/coaxial/optical inputs (up to 32-bit/384kHz PCM, DSD256).  
• Handcrafted in Japan: Meticulous construction with premium components for unmatched reliability and sonic purity.

Why Choose the Accuphase E-4000?

The E-4000 combines technologies from Accuphase’s flagship amplifiers, offering a noise-free, transparent soundstage with powerful dynamics and precise imaging. Its AAVA with ANCC reduces noise significantly, especially at low to mid volumes, while the balanced power stage suppresses interference for pristine audio. Users praise its vivid clarity and ability to drive complex loads, though some note a slightly forward high-frequency character, suggesting careful speaker pairing. With expandable connectivity and a damping factor 33% higher than the E-480, the E-4000 rivals pricier separates, making it a versatile, future-proof choice for audiophiles and home theater enthusiasts seeking high-end performance in a single unit.  

Product Specifications  

• Power Output: 180W/channel (8 ohms), 260W/channel (4 ohms)  
• Amplifier Type: Class AB, four-fold parallel push-pull bipolar transistors  
• Damping Factor: 800  
• Frequency Response: 3 Hz–150 kHz (+0, -3 dB)  
• Total Harmonic Distortion: 0.05% (4–16 ohms)  
• Signal-to-Noise Ratio: 109 dB (line)  
• Input Sensitivity: 190mV (line)  
• Inputs: 5 RCA line-level, 2 XLR balanced, optional DAC-60, AD-50, Line-10  
• Outputs: Pre-out/main-in, speaker terminals (A/B)  
• Power Supply: Toroidal transformer, dual 40,000μF filtering capacitors  
• Controls: AAVA volume, input selector, tone controls (bass: 300 Hz ±10 dB, treble: 3 kHz ±10 dB), RC-250 remote included  
• Dimensions: 18.3" W x 7.1" H x 16.9" D (465 x 181 x 428 mm)  
• Weight: 53.8 lbs (24.4 kg)  

What’s Included  

• Accuphase E-4000 Integrated Stereo Amplifier  
• RC-250 remote control  
• Power cord  
• User manual

Perfect For  

• Audiophiles seeking reference-grade amplification for high-end stereo systems  
• Vinyl enthusiasts with the optional AD-50 phono board for MM/MC setups  
• Home theater setups needing powerful, precise amplification with flexible connectivity