http://blog.sounddomain.com/gadget/2008/02/bunk-beats-what.html I came across this article just recently, and though it relates to Alpine knock-offs, there are certainly many other brands out there being knocked off as well...and sold on places like onlinecarstereo.com and woofersetc.com. For example, I had a customer who insisted on ordering a Zapco Reference 1100.1 amplifier from woofersetc and having me install it for him. He "saved" $150 by doing this, however when the amp came it didn't work...at all. Opened it up and the circuit board took up only a fraction of the amplifiers footprint and the power supply was TINY The point to this post is that the best deal on the internet is probably not the best deal for you. Buy locally and know what you are getting.