I'm in the market to upgrade my sub, and I'm considering either the SVS SB13-Ultra or two PB-1000's. Budget is up to the cost of a single SVS SB13-Ultra. Could always get a second SB13 in the future, of course!
I know that these two subs are quite different animals, with the PB-1000 being a ported design and the SB13-Ultra being sealed box. My receiver is a pioneer LX-85, front speakers are Castle Trent II's (bookshelves, 70Hz to 20Khz, nice flat EQ), center is a wharfedale pacific EVO II, surrounds are generic Aiwa's I requisitioned off an old all-in-one system.
The sub will be used about 50/50 for music/movies. My current room is only 40 cubic meters (~1400 cubic feet). Although we will be moving later this year, I'm pretty sure the audio room will be similar size, but almost certainly no larger than 2000 cubic feet. I usually listen at -15 to -20db (WRT to reference levels).
I'm leaning towards the SB13, as for not that much more money (relatively speaking) you get a sealed box design (for music) AND serious grunt – enough for all of my anticipated future needs (at least until I'd get a dedicated HT room, on the 10 year plan, in which case I could always add a second SB13 etc). I'm worried the PB-1000 may not be grunty or low enough if I should get a larger room, or not as musical as the SB13 i.e. not as "future-proof".
The SB12 may not be grunty enough in future (even with two of them) and the PB12's are getting too large in size for that all-important WAF.
1) One SB13-ultra or two PB-1000's?
2) Can you have "too much sub"? In other words, if it's a smaller room, and not being 'cranked' hard enough, could subs lose range & accuracy? I guess the analogy would be driving a Ferrari to the supermarket to do groceries – it would splutter along in first gear, without "roaring". Would the SB13 play OK at lower volumes?
I can't audition either of these - no dealers anywhere nearby, and I'm not sure SVS's agent here in NZ has the same "try in your own home" return/upgrade policy - but I will email them these questions and see what they say!