Hello freak I bought the hifonics atlas final edition and installed it yesterday. this drives my hifonics zeus bx12 dual bandpass in the 2 ohm operation. from the very beginning I was not very excited about the performance, because my previous stage made slightly more steam with the sub. it is a JBL GTS 600, which fired the sub with 2×175 watt RMS @ 4 ohm before. on the way to work I took the atlas a little bit, after about 20 minutes was sc hluß: the thermal overload protection had jumped in. after about 2 minutes the thermo protection had calmed down and I had bass again. I had arrived at the target meanwhile and looked immediately. the part was hot like a stove plate here still something to the connection: supply from battery to amp about 30 cm, cross section 35qmm, everything exactly like with the jbl:http://home.arcor.de/abraserver1/gallery/mai05/web/img_0047.jpg (I have a capacitor, should be retrofitted) vors the amp has only 60A ANL, has to get me a bigger one, but that shouldn’t be the problem here…… where is the problem, is the amp defective? impedance problem I closed out, the zeus has minimum 2x 3,8ohm and the atlas is 1 ohm stable. here are test reports and instructions for the amp and the sub:http://www.audiodesign.de/downloads.htm one is disappointed……