In reply to:
$500-$550 is the limit of my budget for a sub. The reason I was thinking about the SVS is because it's a tube style and wouldn't take up much room. I was also thinking of the Infinity csw10, which is marked down to $599. It has a 650 watt amp. I don't know if it's any good, but that's alot of amp. I think any sub would be ok for me. I actually like my JBL, but it appears it's days are numbered. I've only had 2 subs, a really rotten KLH and the JBL. Maybe another JBL would suffice.
I had two JBL subs(PSWD112) that were the predecessor to the PB12. While JBL makes good subs the SVS 25-31(since you want a tube) will blow it away.
