Hi Anthony
As you probably know, I have an amp based on NxvR200R2s. Subsequently I have bought 4 of the new HPA-nxV200L R3 Signature modules. I have now built-in two of them into the same enclosure as used for the R2s, using the same power supply.
I am into the process of burning them in - another two are waiting to replace the amp boards in another amp.
I must say that I am very very impressed. They seem to have everything the nxV200R2s have - only even more clarity, without compromising one of the qualities that make the nxV200R2 really stand out - their ability to not sound (too) bright as most solid state amps and deliver the energy in the all-important lower mid range (150-300 Hz?).
Last night I found myself rocking to music that I have before barely noticed...
You claim that the R3 modules have more power over the R2s. I would add that they sound better too - no small feat as the R2s are excellent. The improvement is more than barely noticeable...
BTW, they seem to require less burn in than the R2s - so maybe there is more to come...
I wonder if my nxV200R2s will survive as bass amps...
Best regards
Ole Thomsen
Copenhagen

