Nice, I didn’t know it was available yet.
I have an A6 and I’m pretty happy with it. I think it sounds great, but haven’t heard the lumin. Audiosciencereview did an A6 review a while back that you may want to check out.
Only annoying thing with the A6 is that occasionally it struggled to connect to the internet when I wanted to use it
Send back the amp, but first swap the speaker wire to see if the clipping moves to the other speaker