A quick update if I may. I have not had as much listening time as I want because the weather in SC is wonderful right now. Highs in mid 70s to 80F and sunny.
The 14bsst2 really puts some body into the PB1s. With the Nuforce monos they sounded well but not full, not tinny but no real fullness if that makes sense. Very low noise, if any, and the slam in the bass, even at lower volumes is breathtaking.
Crank it up and the room is pressured very well. Leonard Cohens "in my secret Life" and Alexander Leaving" sound like he is in the room. Hi res Goucho "hey nineteen" is superb as is the hi res Rolling Stones.
I had doubts about the 14 vs the 4Bsst2 and am very pleased to have gone with more "moose juice" not only for the sound but also not to feel like I need to upgrade in the future. I have had Arcams, Nuforce and in my earlier days the GAS Son of Ampzilla. I listened to Classe, Macs and Sim audio but this Bryston beats them all. It is a beast at 100 lbs and is just waiting to be unleashed!!!!
I would highly recomend this amp. You will not be sorry with your purchase and it mates particuarly well with the PMCs. They sound like a completely different speaker (better) with the amp.