Audio Research’s Reference 330M monoblock represents the pinnacle of the company’s five decades of amplifier design, delivering 330 watts of tube power with an authority that commands the most demanding loudspeakers. Its fully balanced, all-tube signal path—from the ECC83 input stage through KT170 output tubes—achieves a rare combination of high-power ease and the delicate resolution more commonly associated with low-wattage designs. The result is a presentation of tonal density, spatial specificity, and dynamic life that retrieves every thread of a recorded performance.
Engineered for daily reliability, the 330M includes auto-bias circuitry that maintains consistent performance without user intervention, while a tube hour meter, fan speed control, and defeatable auto-off provide practical oversight. Both balanced XLR and single-ended inputs ensure broad compatibility with upstream electronics, and 12V triggers plus RS-232 control simplify integration into advanced systems. Weighing 101 lbs, the amplifier’s substantial power supply and tube regulation contribute to its vice-like grip on loudspeakers, extending control down through the lowest octaves with a composure that serves the music first.
Highlights
|
Downloads |