Just picked this amp up a few days ago for $160 rated at 2100 watts rms at 14.4 volts at 1 ohm. Have yet to hook it up in my car (currently in shop) but did hook it up via a computer power supply and clamped close to 400 watts rms at 12 volts at about 4 ohms... now my clamp test wasn't real precise just did a quick test on a 40 hz. Test tone but as soon as its in my car I'm giving it a thorough test, but so far it looks extremely promising for how cheap it was //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif