hm, my zed stuff was good, the next stuff forget the make (Industria series) wasn't that great it worked but wasn't really stable into 1ohm like it said on the **** thing in bold, maxxsonics stuff I've had is good, I went through piles of them... last one being a genXX colossus that I fried one channel on after running it .9ohms bridged for months running my MT 18" //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif the autoteks I had maxxsonics also were great, for the lower end stuff, I had a Merlin and Falcon both were good, I ran the merlin .5ohm and I never had a problem. it was pushing 4 eD 9kv2 d4's all parallel in a sealed box //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif I havn't ever tried a brutus series, but I have atlas mids and they're pretty good imo! hope I helped //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif