Marantz PM-80 Integrated Amplifier Functionality Confirmed Sound output from various inputs has been confirmed. Cassette tape playback and recording have been confirmed; dubbing has not been confirmed due to lack of equipment. Phono MM and MC have been confirmed with an MM cartridge. Features source direct and class AB operation, and is one of the few amplifiers capable of class A operation. This is the greatest appeal of the Marantz PM-80. There are scratches on both side panels, but they are not very noticeable during normal use. This is a purely domestic product made during the golden age of audio, and is now a valuable item. Please check the following site for details: https://audio-heritage.jp/MARANTZ/amp/pm-80.html It has become less common in the market recently. I collect various amplifiers, but I had to let this one go due to lack of space, and I am reluctantly putting it up for sale. I would like to sell it to someone who wants to hear the Marantz sound and will take good care of it in the future. As this is a personal sale, I cannot handle any issues, including those during shipping, so please understand the 3N rule (no returns, no claims, no cancellations). Thank you for viewing.