Summary: I bought this in 2008. This did its job in a pinch. I bought a home sound system and needed sub woofers. I was able to jerry rig an old AC - DC adapter with the right specifications for this. It gave enough of a punch to drive a 300 watt system.
Summary: I thought this amp would be really good, but it sucks!!!!!!!! I bought this amp, hooked it to one 15 box speaker, had a bass booster on it, and it burned out in a week and a half! I had to send it back for a refund. It just stop working all of a sudden.
Summary: Wow what a disappointment, as tolerant as I am of things (yes, it was cheap, but now i wouldn't want it if it was free), i had to switch this thing off after an hour of driving, would rather listen to two front speakers then four with this thing wining and crackling.
Summary: This unit uses a Toshiba TA7250BP output amplifier rated at 23 watts into 4 ohms, one for each channel. Even if you include both channels it only a 46 watt amplifier. 240 watts is a blatant lie. I had problems with input noise. Not very forgiving of ground loop conditions.
Summary: I received this amplifier, and it didn't work right out of the box. I hooked up the 12v power supply, and .....nothing. I waited too long and can no longer return it. I didn't receive the follow-up email until AFTER my 30 day return policy was over. That sucks.
Summary: I installed this amp in my dodge truck as the previous speakers had the amps built on the speaker itself. The amp works great with a couple of tri-axial Pioneer speakers. Good Product great prices easy to install.