Aspen 800

About the Aspen 800

The Aspen 800 is a vacuum tube power amplifier from Granite Audio, designed with matched JJ Electronic 300B vacuum tubes. It is a high-end, handcrafted tube amplifier that delivers approximately 8 watts per channel in a single-ended triode (SET) configuration. The amplifier is praised for its exceptional sound quality, particularly when paired with high sensitivity speakers (minimum 92 dB) and benign impedance (above 6 ohms). It is noted for its industrial, heavy-duty construction and no requirement for biasing the tubes, which operate at high voltages (up to 1200 volts on plates). The Aspen 800 is considered a reference-level amplifier, capable of delivering a pure and satisfying audio experience, especially in smaller listening rooms. Granite Audio is known for manufacturing some of the finest handcrafted vacuum tube stereo systems in the world, including power amps, preamps, and cables.