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Estimated price (community-sourced)
Around — community and catalog average, updates slowly
The Audio Research Reference 330M Mono Amplifier represents the pinnacle of audio engineering, seamlessly integrating innovative design and high-quality components while drawing inspiration from legacy Reference amplifiers. With its robust power output of 330 watts, the Reference 330M delivers exceptional audio clarity and dynamics, making it suitable for even the most demanding audio systems. Utilizing a tube-based gain structure, this amplifier features a maximum tube complement arrangement, including (6) KT170 power output tubes, (1) ECC83, and (1) 6H30 input tube, ensuring a rich and engaging sound signature. The unit also incorporates advanced features such as Auto-Bias tube management, output taps for 4Ω and 8Ω, and dual input connections through XLR and Single-Ended options. Remote operation is facilitated via integrated 12V triggers and RS-232 control, while its standby mode enhances power-saving efficiency. Weighing a solid 101 lbs, the Reference 330M is a true powerhouse designed for audiophiles who demand nothing but the best in their audio setup.
Amplification power output and characteristics
Analog signal output specifications
Input and output connections
Size, weight, and appearance
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions
Components that show up alongside the Reference 330M Mono in real systems. A verdict means the pair has been checked for compatibility and headroom — open it to see how the two get along.
The closest alternatives on specs, description and the systems they turn up in, with the specs they share set side by side.
The Reference 750 SEL Mono's power @ 8ω is 750W against the Reference 330M Mono's 330W and its weight 77.2 kg (170 lbs) against 45.36 kg (100 lbs). Both share class (Tube).
Both turn up in the same documented systems.
The Reference 160S's power @ 8ω is 140W against the Reference 330M Mono's 330W. Both share class (Tube) and weight (45.36 kg (100 lbs)).
Both turn up in the same documented systems.
The Grand's power @ 8ω is 120W against the Reference 330M Mono's 330W and its weight 70.31 kg (155 lbs) against 45.36 kg (100 lbs). Both share class (Tube).
The REF 610T's power @ 8ω is 600W against the Reference 330M Mono's 330W and its weight 77.2 kg (170 lbs) against 45.36 kg (100 lbs). Both share class (Tube).
Angstrom Audiolab Angstrom Stella
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