E-4000 vs Gryphon Audio Designs Diablo 300
The Diablo 300's power @ 8ω is 300W against the E-4000's 180W and its power @ 4ω 600W against 260W. Both share class (AB).
AI-generated product photo — not official manufacturer imagery.
AmplifiersIntegrated Amplifiers
Estimated price (community-sourced)
$13,975
Around — community and catalog average, updates slowly
About the E-4000
The Accuphase E-4000 is a high-power, two-channel Class AB integrated stereo amplifier manufactured in Japan. Introduced in November 2022 as the successor to the E-480, it combines a sophisticated AAVA volume-control preamplifier with a power amplifier using instrumentation-amplifier topology and four-fold parallel push-pull bipolar output transistors. Its rated output is 180 watts per channel into 8 ohms and 260 watts per channel into 4 ohms. The amplifier includes balanced and unbalanced analog connectivity, separate preamplifier outputs and main inputs, tone controls, A/B speaker terminals, a headphone output, and two option-board slots for compatible Accuphase DAC or phono modules. Accuphase’s current product information lists the E-4000 as an active model, so it is not considered discontinued.
Specifications
Power Specifications
Amplification power output and characteristics
- Power @ 8Ω
- 180W @ 8Ω
- Power @ 4Ω
- 260W @ 4Ω
- Amplifier Class
- AB
Never published
- Analog Output — the maker never published this. Checked 30 sources on 6 Sept 2026
- Connectivity — the maker never published this. Checked 30 sources on 6 Sept 2026
Key Specifications
Power: 180W
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions