Originally Posted by cavu
And how does the Velodyne compare
to the Polk PSW505 which will also be $299?!
The Polk has a bigger power amp (260W RMS compared to 200W), a 50% longer warranty and the specs say it goes a little lower.
Just a couple things to consider...
First, a 60W difference in amplifier power won't translate to much of anything regarding these two subwoofers. Driver, enclosure, ports, etc are of far more importance. Even if all of the aforementioned factors were equal, a 60W increase in amplifier power probably wouldn't even amount to a perceivable difference.
Second, the Polk is not spec'd to go lower than the Velodyne. While Polk's specs list 23hz as the PSW505's lowest frequency, its -3dB point is 28hz, 3hz HIGHER than the DPS-12's. Polk does this with most of its speakers. I wouldn't call it misleading, per se, because they do list -3dB specs as well. However, it's something to look out for with Polks, because if you casually glance at Polk's specs, their speakers and subs appear to have better extension than they really do.
If I were choosing between the two, I'd want the Velodyne. Either sub is a pretty good bargain at $300, considering they're not from ID companies. The most desirable way to select your subwoofer is of course to demo both. Oh yeah, and to address the OP's question, I've had an VX-10 and have heard DPS-12's and think there should be a significant improvement, both in deep extension and in output. $299 is an excellent price for the DPS-12, and I would recommend it at that price, though eD has great subs at $300 and $350 that should handily outclass the DPS-12. But to answer your question, the DPS-12 is undoubtedly more capable than your current VX-10. Good luck.