Do you think someone is looking down on you saying "David, you really need to just go and buy yourself a pair of DSP7200 SE's."???

Well, I am kinda thinking of redoing the lounge hifi with floor standing speakers which might allow me to do without a sub. I mean, the 7200se's would fit that bill.....

I wonder if one of your DSPs has a short in the comms socket, which is causing issues?
Can you take the back panel off and check?
Umm.. not sure I'd know what to look for tbh.
A single fuse could be a coincidence.. if it happens again though...