Interesting take. As far as the subs go I feel like the pb1000 is quite a lot for my room. It's the same as your SVS PB-10 NSD, do you feel that yours are too small? I also have a choice between the pb20 nsd for the same price $300 but they are older and more used. Would you go for those over the pb1000?
As for the centers, did you look into whether to go into the r56ci or the r5ci? Thanks!
To get on same sheet of music; in SVS vernacular PC are ported cylinder, PB are ported box and SB are sealed box.
The PB10-NSD is not too much for my room, which better approximates your anticipated new room than your current room.
I have a SB12-NSD in a different room about the same size as your current room for 2 channel music-only duty.
I am more interested in music performance than movie LF effects and have zero regrets on the PB10 in my HT.
That said, if I was to do things over knowing what I now know. I would opt for a PB12-NSD over the PB10 or PB1000 to improve movie LF punch just a bit.
Therefore, if by "PB20 NSD", you meant PB12-NSD, that is the one I would recommend to best support movies in your new room, cost/condition being ~equal.
Concerning centers, IIRC the 56ci is larger and more capable than the 5ci and that is where I would go in the Emptek line. FWIW, having had both horizontal (PSB) and now vertical centers (Ascend), vertical is much better if your room/furniture setup allows it.
Cheers,
XEagleDriver
Sent from my SM-G860P using Tapatalk