I've had a little more 'seat time' with the PB13's.
First up was Susan Nigro playing the Contrabassoon on "The Big Basson".
In my opinion the basson is one of the hardest instruments to record or reproduce. The PB13's gave good pitch definition and differentiation and produced a seamless blend (80Hz x-o) with my Onix Ref3s. Still, the tonality of the instrument was not quite as accurate as the pair of ACI Titans I had in this room about a year ago. I have not had time yet to adjust anything and try again; I suspect that more of a low end roll off might have brought me closer, but, ahem, I was enjoying Ms. Nigro's performance too much too fool with it!
This brings up the general subject of EQ. The PB13's are subjectively more improved over the TV12s than I expected -- good enough to disappear into my (decidedly imperfect) room acoustics. Good enough, IMO, to justify the expense of 1/12 octave room equalization if you are that picky about music reproduction.
On movie music soundtracks the PB13s just disappear into the (improved) virtual soundstage.
I've tried to be as critical as I can of the PB13, but I can't not mention that to me, and my wife, they enhance our subjective enjoyment of musical performances unexpectedly well. Playing the Yellowjackets "Blue Hats" CD,
after track 6 "Savanna" I stopped playback and my wife and I just looked at each other. A great performance with great emotional impact.