The 7500 and 7700 are built for Outlaw by ATI in Los Angeles and are equivalent to their 2005 and 3007 models. ATI OEMs multichannel amplifiers for a number of well known manufacturers (just do a quick Google search for the usual suspects) and has a solid reputation. I've used my ATI 2005 almost daily for several years and it has never let me down. My ATI will be around long after my 990 is gone and maybe the next processor after that!