MC-100B Vaccum Integrated 60WPC Push Pull Stereo Class A KT88 Tube Amplifier. Ultra-linear 2x 60W (8 ohm). Triode state 2x 30W (8 ohm). KT88 x 4; 6SN7 x 4; 12AX7 x 2. Integrated 0.25V Power 0.6V.