I figure I’d better update this thread. I got the replacement board for channel A from the eBay seller I bought this amp from. He sent it priority and I had it next day. Pretty good customer service. I had the amp for about 2 months with only hooking it up once just to make sure it worked. It did, so it sat all the rest of that time. Anyway, it’s been working with no issues powering a pair of my hst18’s in ported cabs. I haven’t gotten around to setting up the mini dsp so no high pass either. And I love the sound. Effortless power. Especially deep down low. Like nothing inukes ever sounded like. I’m seriously considering getting another one now that I know it isn’t 2 ohm stable and running my front 4 subs off these clone amps. I don’t know. But again, anyway I just wanted to mention the amp is up and running and working well.