A tube power amplifier drives your speakers from a vacuum-tube output stage, trading the raw damping factor of solid-state for the harmonic bloom, midrange presence, and natural decay that valve designs are prized for. Paired with a capable preamplifier, a tube power amp is the heart of a separates system, and monoblock versions take it further by giving each channel its own chassis and power supply. This collection holds all-tube stereo amplifiers and monoblocks from Rogue Audio, built in Pennsylvania, and Unison Research of Italy.
Rogue's Atlas Magnum III puts out 100 watts from KT120 tubes with a switchable triode mode, the M-180 monoblocks deliver 180 watts, and the flagship M-250 Ultra monoblocks reach 250 watts per channel on KT88 tubes for the most demanding loads. Prefer valve tone with class-D power and control? See our tube hybrid amplifiers. Pair any of these with a tube preamplifier, or browse all power amplifiers.
