I have a 5150XXK for sale. I was running it bridged in 3 channel mode and one set of channels quit working(front speaker outputs). It happened when I installed it and then it started working. Worked for 2 weeks just fine then they quit again. I am just wanting to see if I can sell it rather than send it in to Arc. There may be something loose inside. It may or may not be a big deal. Arc says $125 flat rate to fix it. I sent another 5150 in a couple of months ago for repair and they ended up fixing it for free. So if you send it in, you may get a like new amp for really cheap. Looking at $150 for it. About half what I paid. Even at $125 repair, you are getting a like new, factory tested amp for $275. Cosmetically, it is almost perfect.
