Power amplifiers mono — Audio Research Reference 750SEL

The Reference 750SEL is a flagship-tier monoblock power amplifier from Audio Research, built with a substantial output power and an exceptionally wide bandwidth. The Reference 750SEL represents Audio Research's most ambitious current statement in monoblock power amplifier engineering.

Key specs that matter

Input sensitivity is 4,600mV, with input impedance at a substantial 200,000 ohms balanced. Output power is a substantial 750W into 8 ohms. Gain is 24dBu. Frequency response extends down to 1Hz and up to an exceptionally wide 200,000Hz within plus-or-minus 3dB. At 343 x 584 x 528mm and a substantial 77.2kg, the Reference 750SEL represents Audio Research's absolute current flagship monoblock engineering ambition, reflecting the brand's most storied American tube-and-solid-state engineering heritage.

Sound and use context

Expect extraordinary dynamic authority reflecting the substantial 750W output combined with the exceptionally wide 1Hz-200kHz bandwidth, representing Audio Research's most accomplished current monoblock engineering.

Pairing

As a monoblock, two units are needed for a stereo pair, and Audio Research's own preamplifier catalogue offers natural, brand-coherent pairings.

Alternatives

Other manufacturers' comparable flagship-tier monoblock power amplifiers offer alternatives for buyers wanting to compare features at a similar price point.