Originally Posted by jeffas000073
OK.....so I guess I'll go with the ported sub instead of the sealed since everything I'm reading from you guys, plus what's on the SVS site says go ported. So that leaves me with either going with two PB2000's or one PB13 Ultra (most likely would get that from SVS's clearance area). More punch with two PB2000's?
That's a good question. Two PB-2000s will have a combined output close to that of the Ultra that's for sure. The other advantage is that duals will naturally offer a flatter frequency response and a more uniform bass across the room. The advantage of the Ultra is a nicer finish and variable tuning that allows tuning the sub lower.
... And we fall back to the dilemma others and I already had
I wanted to upgrade my SB12-NSD and wanted to try 1) duals, 2) ported and 3) variable tuning / low tuning and 4) respect my original budget. Guess which constraint fell in the end. I ended up with dual PC12-Plus because the cylinders are cheaper and have smaller footprints than the big ported box, and the Plus have variable tuning too.
Now with dual Pluses, if I had to choose to go down to either a single Ultra or dual 2000's, I'm really unsure about what I'd do. I think I'd go with a single Ultra, because I like the nice finishes and the huge grille, and because I really dig 16 Hz tuning. Frequency response can be EQ'd to some extent and unless you like to sit everywhere in your room, bass uniformity is a nice to have but is not that critical.
I recently had to turn off one sub and turn it on later (ok that's a total lie: I forgot to turn on one of the sub for a whole month) and while having the missing sub turned on sounded quite a bit better, a big part of that was missing 4-5 dB of output to reach calibration level, and in any case, I think the sensation of strong 16 Hz output to be a more palpable benefit than having duals. Others can't live with duals though so it's a close call.