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About the ST85
The VTL ST-85 is a compact stereo tube power amplifier from Vacuum Tube Logic. It uses four EL34 output tubes and four 12AT7 tubes, and is built as a high-current stereo amplifier for smaller loudspeakers, mini-monitors, satellite systems, and efficient floor-standing speakers. VTL’s current product page describes it as delivering 60 watts per channel in tetrode mode and 30 watts per channel in triode mode, while the original Stereophile specification page for the reviewed unit lists 85 watts per channel into 4 ohms. The ST-85 is a long-running VTL design associated with the brand’s classic EL34 tube sound and a compact chassis format.
Specifications
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