Originally Posted by derekmoore
Yes I have actually, the more I read the more I am finding out that while the PB-16 has its pluses, its a lot of hype also. I do like their "Bill of Rights" with the ability to trade up for the same value. So it's still in the race but I am also looking at Dual FV15HP's or 1 FV18 or 1 FV25HP or 1 V3611. Also looking at the Cap 2400 & 4000ULF, taking my time to find the best match for my space.
What is there to upgrade to from the PB16 that SVS has to offer?
The JTR's are generally consider to be the SPL leader, but support and customer service reviews seem to vary. I can personally vouch for Rythmik's customer service. They will respond to direct communication, phone calls and forum postings most any day/time of the week.
Since you have space for two FV15HP's. I think that would be a good bet to ensure the most even frequency response across the most seats of your HT. On the other hand, if you are only concerned about one seat, then one of the Caps, FV25HP, or the V3611 would be excellent choices. Also, should you go with one of these, they are end game subs. In other words, you'll never have to upgrade them, you just add another one.
Given your space is around 2500 cubic ft, IIRC, I think you would find 2 FV15HP's enough to fill the room. But that would depend upon your performance goals.
Also, depending upon how much you prioritize clean music vs HT, that could also affect your decision. If music is at all a priority, then one of the Rythmik options would be very, very tough to beat. The servo design is impressively clean and detailed. What it lacks to many however is "chest punch". Which comes from particle velocity and often times, from lesser subs, that particle velocity comes in the form of harmonic distortion. It feels impressive, but once you hear detail in bass lines and double kick drums that you have never heard before via servo, it is very difficult to go back.