Here we have a fair example of an MMATS D300HC. The 300HC is designed to deliver max power at 2 ohms. It is not rated below 2 ohms. Amplifier is missing both decals and 1 knob. Minor powder wear but no major sink damage. Item is priced to reflect recent service at Tri-state Amplifier Repair. All of the electrolytic capacitors have been replaced. All insulated devices have new thermal compound. This is a work horse, not a shelf queen. Comes with a worn speaker connector. Brand new ones are available here on eBay.
Due to the nature of consumer electronics this item is offered for parts, as-is, and without returns offered. It takes power to make power. You will need a proper electrical system to support an amplifier like this. I recommend professional installation. See my feedback! If I say it works - it works! Thanks for looking!