Stereo 100

About the Stereo 100

The Rogue Audio Stereo 100 is a stereo tube power amplifier featuring four matched KT120 output tubes in push-pull configuration, paired with (2) 12AU7 and (2) 12AX7 small signal tubes. It offers user-selectable triode mode (approx. 60WPC) for warmer sound and ultralinear mode (100WPC minimum) for greater dynamics and power. Designed with a massive fully regulated power supply using pi filtering and high-quality components like Mundorf capacitors, Vishay/PRP resistors, and Cardas hardware, it ensures low noise, excellent transient response, and full low-frequency reproduction. Key features include heavy-duty gold-plated RCA (and XLR on some units) inputs, gold-plated binding posts with 4-ohm and 8-ohm taps, built-in bias meter, integral tube cage, machined aluminum faceplate, mechanically isolated transformers, and heavy 2-ounce copper circuit boards. Praised in reviews from Stereophile (Class A Recommended), Positive Feedback, and 10 Audio for its musicality, resolution, reliability, and value, it replaces the Stereo 90 and transcends competitors with its build quality and sound.