Mlawitm,
Very tempting! I had purchased the amp before the speakers. I was having issues with my ML 333. The capacitors had blown three times in 9 years. The service tech was candid on the phone and told me it was due mostly to a design issue with the ML 3xx series. I traded it in right after it got fixed for the Pass X350.5 A few months later, I sold my Thiel 3.6, which I had for 10 years, and bought a pair of Parsifal Encores. The order of upgrade kind of went out of sequence as I had been contemplating to change speakers for three years when all this happened.
Anyways, after I finish building the listening room, I want to get a pair of Usher BE-10s. I think I will need the X350.5 to drive those....
FrankC