Audio Research Reference 80S Stereo Amplifier

Ultralinear mode provides the full 80 watts of power with a more dynamic, punchy sound, while Triode mode reduces power output to offer a more intimate, harmonically rich, and relaxed presentation. The ability to switch between these modes allows you to tailor the amplifier's character to your specific speakers and listening preferences.

With 80 watts per channel, the Reference 80S is designed for refinement and musicality rather than brute force. While it handles most high-quality speakers with ease, it is best suited for speakers with moderate to high sensitivity rather than extremely power-hungry designs.

Like all high-end tube amplifiers, the KT150 tubes will eventually require replacement depending on your usage habits. The Reference 80S is designed for longevity, but you should budget for periodic tube replacement to maintain the amplifier's signature clarity and performance.

Yes, the Reference 80S is equipped with both balanced (XLR) and single-ended (RCA) inputs. This flexibility allows it to integrate seamlessly into a wide variety of high-end audio systems.

The unit measures 18.5 inches wide by 10.5 inches high and 18.5 inches deep, weighing approximately 28.2 kg. Because it is a tube amplifier, you must ensure it is placed on a sturdy surface with adequate ventilation space above and around the chassis to allow heat to dissipate properly.

The Reference 80S features dedicated output taps for 4, 8, and 16-ohm speakers. This ensures that you can achieve optimal power transfer and impedance matching for a wide range of speaker designs.