Objectivity is next to impossible, but I'd say the sound of these in bridged mode is absolutely delightful. There is a clarity which the big Meridian amp just doesn't seem to have - I've yet to try a symphony but jazz and chamber music are perfect. Driving first an old pair of Mission bookshelf speakers and then Linn 140s or Focals there is ample volume with no trace whatever of distortion. So for me the verdict on Nelson Pass's preferences for Class A and for minimum component count is very definitely positive.
The kits went together without any problem (I only had to use the desoldering braid twice - always a sign to stop and get some sleep.) The amps are designed with first-time builders in mind and the illustrated build guide on DIYaudio is excellent.
If I build another DIYaudio design, it won't be the lazy way: the metalwork from Italy is good quality but expensive so I'll shop around. Similarly, importing a full kit of components and the individual psu.s from the 'States attracted a further £65 in VAT+collection fees which in retrospect was a mistake. (Some of the parts would have attracted VAT anyway, so how big a mistake would take hours and a spreadsheet to figure out. Life's too short.)
I'd forgotten how much satisfaction even a simple build like this can generate, and to a lesser extent repeat every time you switch on.
Although I was advised to forget using this amp with them...would the increased power be enough? I'm not driving my 909 too hard at my age