FWIW, I'm really not sure that there is such a thing as an end game vented subwoofer. I thought that the JTR S2 was pretty close to an end game sealed sub, until the PSA S7201 came out. But, it dwarfs the S2 in both size and weight. Now, I understand that PSA plans to introduce a "pull out all the stops" ported sub at the end of the year. I expect it to have dual 21" drivers, in a very
I think that somewhere around 300 pounds or so, may start to represent the higher end of a size/weight limit, but there are some speakers which are much too big for most rooms, and far more expensive than even the most costly subs. When the average subwoofer driver size was in the 12" to 15" range, 18" subs seemed like end game subs.
But now, several sub makers are making 21" and even 24" subs, although so far, most of them are sealed. I don't see any indication of an immediate slowdown in the subwoofer arms race, and I fully expect Jeff to be right in the thick of it.
Just to clarify what I am saying here, I'm not claiming that anyone "needs" a bigger subwoofer than a Cap 4000ULF, for instance. But then again, I'm not really sure that most of us actually need even bigger SUV's or smartphones. But, that doesn't stop competitive companies from making them, and it won't stop some of us from buying them.