Originally Posted by 4DHD
Have you ever heard the SVS subs, and if so how do they compare to the HTPS400?
First time I've bothered to check out the SVS line. The PB13-Ultra has one huge ass driver.
Considering that my SUB1500 drivers weight 42lb, I'd say the Ultra 13 must be closer to 80lbs.
I heard the PB12-Ultra/2, which is/was in the same general price bracket ($2k-2.4k)as the HTPS400, but I have not heard the new PB13-Ultra. I'm not sure if it's even shipping yet.
Both the HTPS and the PB12-Ultra use a 1000W BASH® digital amp, though the back panels are configured differently according to JBL's and SVS's specifications. The SVS has PEQ. The JBL has THX.
Both the JBL and SVS have 12" rigid Aluminum metal alloy cone drivers, too, although the SVS has two
that are made by San Diego car sound manufacturer TC Sounds. The JBL driver is made by JBL.
Beyond that there are few similarities. The JBL is a compact, sealed, cube. The SVS is a LARGE, tri-ported, rectangular box. The JBL is front firing; the SVS is down firing.
As you might expect, the sound is rather different. The SVS is far more flexible in terms of set up and optimization, but not flexible in its placement. The JBL has less flexibility in calibration, but its placement flexibility is almost unlimited. The SVS can produce significant LF, which if not controlled can get away from you. Poorly set up it's kind of like somebody's low rider boom-boom-booming down your street. Well set up, you'll really feel the air in the room moving in and out of the port(s), depending on which if any you've plugged in the calibration process. The JBL is faster, more nimble, and tonally a bit more precise, but it cannot move the volume of sound the SVS does, and it stops about 4Hz short of the SVS at the bottom end.
IMO a single SVS PB12 is more satisfying than a single JBL HTPS400. It will definitely create more of an impact sonically (and visually). However, I don't believe a single SVS is as effective in creating a whole room balance (eliminating nulls, etc.) as two or more HTPS400s (if you want to spend the money, or you can get them as cheaply as I did). And frankly I can't see putting more than one SVS into anything other than a really large room that your wife doesn't have any opinions about. They're just too darn big.
For a single application, I don't think you can go wrong with the SVS, as long as you use the calibration tools it has to really tame the room as much as possible.