PSB pairs well with NAD -- in fact, it's the best sonic match of all the various possibilities you mentioned. However, the C352, good as it is, may not exploit the Platinum Series PSB's full potential, and as a result could make for an unsatisfying system over the long term. (No phono stage, either, if that matters.)
I's suggest looking for a used NAD Master Series M3 integrated amp. They're about $2,500 new...but used ones can be had for around $1,500. I've never heard the M2 speakers with the M3 amp but given how well PSB and NAD play together, it's well worth investigating.
I's suggest looking for a used NAD Master Series M3 integrated amp. They're about $2,500 new...but used ones can be had for around $1,500. I've never heard the M2 speakers with the M3 amp but given how well PSB and NAD play together, it's well worth investigating.