Reference 750 SEL Mono

About the Reference 750 SEL Mono

The Audio Research Reference 750 SEL monoblock amplifier delivers over 750 watts of continuous power into speaker loads of 4 to 16 ohms, utilizing sixteen KT150 vacuum tubes per channel along with 6550WE and 6H30 tubes for power supply regulation. It features a fully balanced circuit topology with a single balanced XLR input, custom-built power and output transformers, and extensive tube matching and burn-in for reliability and sonic excellence. The SEL is the final and limited edition version of the 750 series, produced in only ten pairs, incorporating 23 new wires and 26 new capacitors for enhanced sound quality. It offers a frequency response from 1 Hz to 200 kHz, a power bandwidth of 15 Hz to 150 kHz, and a slew rate of 20 volts per microsecond. The amplifier is noted for its ability to deliver detailed, dynamic, and immersive musical experiences with low distortion and noise. Dimensions are approximately 13.5" W x 23" H x 20.8" D, weighing 170 lbs per unit. This amplifier is a pinnacle of Audio Research's tube amplifier design and craftsmanship, aimed at audiophiles seeking the highest fidelity and power in music reproduction.