PM640 Vxi Ampl/Mixer Harman Kardon; New York, build 1987, 3 pictures | Radiomuseum
zerohifi.com 🇷🇸🔊🔊 on Instagram: "Harman kardon pm640 vxi @zerohifi #zerokpizlog @harmankardon #harmankardon Specifications Power output: 45 watts per channel into 8Ω (stereo) Frequency response: 0.5Hz to 167kHz Total harmonic distortion: 0.1% Damping