Hi, I had a PV1 a long time ago and upgraded to an SVS PB12+,
That HSU looks like a good deal, how much would it be including any customs charges? If I hadn't bought the SB13, I may have seriously considered that, although I read quite a lot of BASH amp failure threads over the years so that would put me off a little especially importing from the US. Although saying that, my original PB12+ that had the BASH 525W amp is still going strong (I sold it to a friend)
That certainly sounds like a unique room you have there, curved walls.. I'm sure that would be an interesting measure of in-room responses?
Regarding leaning towards the PC12 Plus.. I think you'd be happy although It would be handy if you could let us know the size of your room in cubic ft as 120m2 sounds huge (assuming 10m x 12m x??) and I'm wondering if one sub is enough?
The room size is about correct, as it is all open plan, albeit a very irregular shape. The maximum dimensions are around 50 feet by 30 feet by 9 feet. I have been managing with a JBL 250W RMS subwoofer for over 11 years, so any advance will be an improvement. I am going to go down to Worthing (about 45 minutes away from my UK house) to listen to a PV1B to see if I like it. I will take some of my own favourite classical piano music to play and ask them to match with B&W 802's which are as close to my SCM-40's as they do.
The cost of the HSU Rosenut ULS-15 including shipping and estimated taxes would be around £1200 but as they are not going to do the rosenut until the end of the year, it is a moot question.
I have now narrowed my choice to a Velodyne 1200 SPL Ultra, an SVS SB13 or the B&W PV1D. I will defer my decision until I have heard the PV1D.