The Boss REV-665 is a solid, no frills amp. There are a few left brand new in box from a few years back that never made it to a distributor. Very hearty build and hefty heat sink. If you are looking for performance and don't care about the brand name sticker and care about what is inside, this is a nice option. This is essentially back when Boss still had a good reputation with good quality, American made products. Specs: Boss Audio Zed Made in USA: Havoc REV-665 85wrms x 4 @ 4 ohms at 12