Accuphase E-4000

Overview

The Accuphase E-4000 is a high power stereo integrated amplifier that sits at the heart of the celebrated Accuphase E series. It combines a robust push pull power stage with the brand's signature attention to purity, delivering effortless drive into demanding loads while preserving the delicacy and tonal honesty that Accuphase has cultivated for decades. This is a full function integrated designed to serve as the long term center of a serious two channel system.

Engineering highlights include Accuphase's AAVA volume control, which varies level in the current domain rather than with a conventional resistive potentiometer, keeping signal to noise performance and channel balance consistent across the entire volume range. Instrumentation style amplification, a high damping factor output stage, and generous power supply reserves give the E-4000 firm grip over the woofer and a wide, stable soundstage. The chassis is expandable through Accuphase's option board system, allowing analog phono and digital inputs to be added to match your sources.

The E-4000 is for the listener who wants one refined, reliable component to anchor a revealing system for many years. It suits medium to large rooms and a wide range of loudspeakers, from efficient designs that reward finesse to more demanding loads that need current and control.

Key Features

• AAVA volume control varies level in the current domain for consistent noise and channel balance at every setting
• High power push pull output stage with substantial current delivery into low impedance loads
• High damping factor for firm, articulate control of the loudspeaker
• Instrumentation amplifier style circuit topology for low distortion and excellent stability
• Expandable via optional analog and digital input boards to match your sources
• Balanced and single ended inputs plus pre out and main in for system flexibility
• Logic controlled relays and short signal paths for signal purity
• Substantial toroidal power supply with large filter capacitance for dynamic headroom
• Machined aluminum front panel and Accuphase build quality for long service life

How the E-4000 Compares

Accuphase E-4000 vs Accuphase E-700

The E-700 sits above the E-4000 as Accuphase's flagship pure Class A integrated, trading the E-4000's high power push pull design for the warmth and continuous refinement of Class A operation. If your priority is the sweetest possible midrange and you run efficient or moderate loads, the E-700 rewards that goal. The E-4000 offers greater raw power and higher damping for demanding speakers and larger rooms. See the Accuphase E-700.

Accuphase E-4000 vs Accuphase E-3000

The E-3000 sits one step below the E-4000 and shares the same design philosophy and AAVA volume control at a lower output rating. It is an excellent choice for small to medium rooms and easier loads. The E-4000 provides more power, higher damping, and greater dynamic headroom for larger rooms and more demanding loudspeakers. See the Accuphase E-3000.

Accuphase E-4000 vs Luxman L-509Z

The Luxman L-509Z is another flagship class integrated with its own voicing, tending toward a slightly warmer, fuller tonal character supported by Luxman's ODNF feedback topology. The E-4000 leans toward precision, resolution, and firm grip. Both are superb; the choice comes down to whether you prefer Accuphase's transparent control or Luxman's rich musicality. See the Luxman L-509Z.

Accuphase E-4000 vs Yamaha A-S3200

The Yamaha A-S3200 offers a balanced fully symmetrical design with mechanical ground construction and classic VU meters at a different point in the market. It presents a vivid, energetic character. The E-4000 brings higher damping, the AAVA volume system, and Accuphase's expandable board architecture for those wanting a long term reference integrated. See the Yamaha A-S3200.

Recommended Speakers

The E-4000 pairs its high power, high damping output with fine resolution, so it flatters both demanding loads and efficient designs. These catalog speakers span efficiencies and room sizes to make the most of that control and detail.

• Marten Parker Trio Diamond The diamond tweeter and ceramic drivers reveal every bit of the E-4000's resolution, while the amplifier's damping keeps the bass taut and controlled in medium to large rooms.
• Gauder Akustik Arcona 100 MKII SD Gauder's steep crossovers and precise driver integration reward a clean, controlled amplifier. The E-4000 provides the current and grip these floorstanders like for accurate, dynamic playback.
• Spendor Classic 100Ti This classic voiced standmount brings a natural, room friendly balance for small to medium spaces, and the E-4000 adds transparency and firm bass control without overheating its character.
• Klipsch La Scala AL6 With very high efficiency, the La Scala shows off the E-4000's low noise AAVA volume and finesse at modest listening levels, delivering effortless dynamics in larger rooms.
• Amphion Krypton 3X Amphion's controlled dispersion and neutral tuning benefit from a resolving, well damped partner, and the E-4000 supplies the clean power and control to unlock their imaging.

Frequently Asked Questions

What type of amplifier is the Accuphase E-4000?
It is a high power solid state stereo integrated amplifier with a push pull output stage, combining preamplifier and power amplifier in one refined chassis.

How much power does the E-4000 deliver?
It is rated at 180 watts per channel into 8 ohms, 270 watts into 4 ohms, and 360 watts into 2 ohms, giving it strong headroom for demanding loads.

What is AAVA volume control?
AAVA is Accuphase's volume system that varies level in the current domain rather than using a conventional resistive potentiometer, keeping noise and channel balance consistent across the entire range.

Can the E-4000 drive difficult speakers?
Yes. With a high damping factor and stable output into low impedances down to 2 ohms, it grips and controls demanding loudspeakers well.

Does the E-4000 have a phono stage?
Phono capability is available through an optional analog input board, allowing you to configure the amplifier to match your sources.

Can I add digital inputs?
Yes. The E-4000 accepts optional digital input boards through its expansion slots, so you can add DAC functionality to suit your system.

Does it have balanced inputs?
Yes, it offers both balanced XLR and single ended RCA inputs for flexible source connection.

Can I use the E-4000 as a preamplifier or power amplifier only?
Yes. It provides pre out and main in connections, so you can separate the preamp and power amp sections or integrate it into a larger system.

What size room suits the E-4000?
Its power and control make it well suited to medium and large rooms, though it works beautifully in smaller spaces with efficient speakers as well.

How does the E-4000 compare to the E-700?
The E-700 is a pure Class A flagship prized for midrange warmth, while the E-4000 offers more power and higher damping for demanding speakers and larger rooms.

How does the E-4000 compare to the E-3000?
The E-3000 shares the same design philosophy at a lower output rating, ideal for easier loads, while the E-4000 adds power, damping, and dynamic headroom.

What is the damping factor of the E-4000?
It has a damping factor of 600, which contributes to its firm, articulate control of the loudspeaker's low frequencies.

Does the E-4000 come with a remote control?
Yes, a remote control handset is included in the box along with the power cord and documentation.

How heavy is the E-4000?
It weighs approximately 24.5 kg, reflecting its substantial power supply and solid chassis construction.

Is the E-4000 suitable for high efficiency speakers?
Yes. Its low noise AAVA volume and refined output stage make it an excellent partner for efficient designs, delivering finesse at modest volumes.

What sound character does the E-4000 have?
It leans toward transparency, resolution, and control, presenting a clean, stable soundstage with honest tonal balance.

What warranty comes with the E-4000?
As an authorized Accuphase dealer, we provide the full manufacturer backed warranty for the original owner.

What speakers do you recommend with the E-4000?
We suggest resolving, well built designs such as the Marten Parker Trio Diamond, Gauder Akustik Arcona 100 MKII SD, Spendor Classic 100Ti, Klipsch La Scala AL6, and Amphion Krypton 3X, chosen to span efficiencies and room sizes.

Is the E-4000 an authentic Accuphase product?
Yes. We are an authorized Accuphase dealer, so every unit is genuine, fully warranted, and supported.

Why buy from All Elite Audio?
All Elite Audio is an authorized Accuphase dealer offering genuine products, full manufacturer warranty support, and expert guidance on system matching. We help you choose the right components and pairings so your investment performs at its best for years to come.