The Marantz PM-80mk2 (also written as PM-80 II or PM-80 mkII) is an iconic and highly loved integrated stereo hi-fi amplifier from the 90s (produced between 1993 and 1997). This model is particularly famous among audiophiles for its flexibility to switch between Class A and Class AB. The mk2 solved a number of critical design points of the original PM-80. Where the first version still used a fault-sensitive hybrid STK control, the mk2 has a fully solid-state build (discrete transistors), which significantly benefited the reliability and sound. The unit has been professionally serviced and this what has been done to the unit : - Completely renewed the whole power Amplifier stage. - Fully recapped the Power Amplifier stage. - Replaced all power transistors. - Replaced a handful of resistors and diodes. - Completely renewed and recapped the power supply PCB module. - Fully washed from old dirt. Such a professional services cost time and money if you seeing for a nice serviced unit this could be your chance. Main Specifications Power (Class AB): 2x 100 watts per channel at 8 Ohms (145 watts at 4 Ohms). Power (Class A): 2x 25 watts per channel at 8 Ohms. Frequency range: 10 Hz to 100,000 Hz. Total harmonic distortion (THD): Extremely low with 0.006%. Damping factor: 120. Weight: 13 kg (a heavy, solid construction with a large ring core transformer). Phono step: Equipped with a high-quality, built-in phono preamplifier that is switchable for both MM (Moving Magnet) and MC (Moving Coil) elements