I figured I'd let people know that I've got another channel module that died this past weekend. The symptoms leading up to this were that a metallic thumping or clicking sound came from what I suspected was one of my 6007's a few times over the last few weeks when turning the system on. This past weekend, the same thing happened and then when I went to watch a video, the dialog was garbled. Analysis of swapping input and output cables to confirm a signal was coming from the prepro and that the speaker was OK confirmed a bad output channel on the amp. Since I've done a channel module swap before, ATI is sending me a replacement module so the amp doesn't have to be shipped via freight to the other side of the country and back. The process of swapping a module is kind of a PITA (especially since this one is the middle module), but a lot less hassle than shipping the amp.
I love these amps when they're working, but I'm getting kind of frustrated with the issues:
1) Upon initial purchase of my pair of 6007 (around July of 2016), the trigger circuits didn't work correctly. @RichB
had the same problem and we worked with ATI to get it resolved, which involved swapping out the trigger board and also flashing the firmware on it. The good news is that the trigger circuit has worked great since.
2) I had a bad channel module when I first got the amps. ATI sent me a replacement, which has been fine since performing the swap.
3) This past October, another module stopped working. ATI sent me a replacement. While installing the replacement, I discovered what appeared to be a disconnected wire on one of the ribbon cables that essentially controls when the modules should turn on. ATI confirmed that the connection should be made. Since reconnecting that wire and swapping the channel module (I already had the amp all pulled apart at that point, so it seemed prudent to swap it), that amp has been fine. I never heard back from ATI to confirm that the module I swapped out was OK, but I suspect it was.
4) Now another bad module.
At this point, I've been starting to wonder if I should consider going with something else, but these amps sound so good when they're working that I'm not thrilled with the idea of doing that.