Brother to Dimpthepimp^^^ I bought a VLX4150 and a VLX3de I got them both installed. I don't know why, but the 4150 popped all the fuses on the front and had a internal direct short the first time it was turn on. I also had no audio from the new sub, but that turned out to be a problem with the sub. Once I got the 4150 back from re audio and the sub back from the shop. The 4150 worked fine and I notice they hot glued/epoxy the double stack circuit boards to help secure them,these amps have a clear bottom plate. The VLX3de preformed o.k. It was running at a .5ohm on one Btl N2 18 w/four batteries, 50 farad cap. and one stock alternator. Voltage drop was a problem as it would go to 10'ish if played long(working on a second alt.) Then...it quit, the vlx3de would come on but no sound. Pulled it out and found the double stack circuit board came loose, I pull the clear cover off and pushed it back down. Installed and it worked great for about a week and it came loose again. Pulled it back out,found same problem and I went ahead and hot glued the edges of that double stack circuit board to help it from coming loose(as I noticed it was done on the vlx4150). Got it back in and installed and super! It was great for o-about 6 weeks then one day it wouldn't turn on Pulled it back out again (really tired of this now) and the double stack circuit board was o.k. and I hooked up some tester leads and could not get it to come on. I pulled the cover off and look around and nothing, no smell, no burnt parts, I have no idea. Butttt: I got a used crescendo 3kwp today and I'm off to the races- not really. I am going to get this second alternator purchased and put on before putting this new amp is in, as that was what I was working towards before the VLX3de stopped working. All I know is the day before it quit I was into the rock and roll , not slamming the bass a lot, then I notice it wasn't on. It is not mounted on the speaker box and has 2 runs of zero gauge wire to the back. I don't think it was happy at .5ohm and the voltage wasn't the best but ??????? I also noticed they not selling these amps on this site anymore and I wonder. I will get it fixed, it looks really good, then sell it.