For those satisfied with nothing but the ultimate in High-Fidelity. It’s the McIntosh 50 watt amplifier – unsurpassed for performance and quality McIntosh 50W2 Monaural Power Amplifier & P50D Power Supply – This listings is for two sets of the highly regarded McIntosh 50W2 Amplifier. Each amplifier and power supply has been tested for power only, all power on, no further testing was done. On one of the power supplies the mounts for 2 capacitors have broken off, still works, see photo. Serial number have faded on 3 of the 4 units, with only one completely visible reading 3153. Please message me with any questions, thank you.