Spring...
RE wpc
No. simply more vol. for my room + speakers.
If the later PA 30s (mk ii) are alike the MK II line stage preamp, there going to be a bit faster, quicker. I thought however only the linestage got speeded up.
The 30s are set apart from the 60s & 120s he made, as the 30s were aimed directly at the SET folks who needed more ooomph, and to drive a greater range of squeakers.
Actually two things hold me back from the PA 30s... primarily it's just biasing them. For myself, it would be a dicey prospect as I'd not be able to see the onboard meteres... like everybody else.
Secondarily I wonder about the imp curve of my drivers and room size enough to give me pause.
The first scenario here though, sets them off my personal list... otherwise I'd probably give them a try, as my next speakers will be a bit more eff with an easier load still. Whenever that happens... lol.
But the 30s are mesmerizing amps to be sure!
The caveat here I suspect with what ever amp the OP winds up with fed by his current pre, amps are not 100% of the story in that lush, full, wet sound... the pre plays a substantial part too, as do the speakers.