It’s not just Class D, I had an Eden WT550 that plopped itself mid gig, nightmare! It then got worse as the uk tech couldn’t repair it had to send a new preamp board over from the US. Then a few months later the fan went and it overheated and cut out mid gig. I got it repaired and solid it, but I was an inch away from a Basil Fawlty Moment in the Car Park.
I loved the Eden sound, but the build quality of my particular unit was Friday pm at Longbridge in the 1970’s.