Underrated amp, a gem. All MOSFET design, high current output (75A peak-to peak), rated 220W/chan at 8 ohms, 350W/chan at 4 ohms.
Massive power transformer.
Can accept either RCA inputs or balanced XLR.
Can be powered up normally with front button, or remotely with 12V trigger input.
No noise on turn on/off. No hum through speakers or directly from transformer.
Gets warm as expected after several hours use, but not hot.
To my ears it sounds as clean, even preferable to my former Krell KAV-150a.
In good overall shape with some marks. You can examine before purchase.