Originally Posted by DaveN
I'm thinking about a 4000ULF for my HT. The room is 15 X 21 X 9' and I currently have 2 SVS 20-39CS subs along the rear wall and a Genelec 7073a along the left wall. My front speakers are too large for a sub in the front. While bass is pretty good, the subs fail to pressurize the room. I'm thinking that the 4000ULF output would be great enough in a 3000 sq ft space to overcome any room problems.
The HT is a converted bedroom and it was too narrow to rip to studs and put in a staggered stud arrangement. The room is on the second floor with a garage below and attic above.
I am thinking about replacing the Genelec with the JTR sub and keeping the SVS subs to even out bass response in the room.
What do you guys think about this sub for my application. I know that shipping charges would be quite high but does JTR have a home trial return period if I'm not happy with the sub? I plan on this being my last sub purchase.
I had to look up those SVS subs, but they are a 16 year old sub, with a 300 watt amplifier. Subwoofer technology and subwoofer standards have improved immeasurably in the last 16 years. In other words, they bear the same relationship to a Cap 4000 that a Model T Ford bears to a Ferrari. (For the record, I own SVS subs, although much more powerful models.) I think that if I were you, I would retire all three subs and get a pair of good replacements. If you can afford it, I might recommend a pair of Cap 2400's, or if you can't quite manage that, a pair of Cap 1400's.
Part of the reason that I used the car analogy is to illustrate what an enormous difference there would be between both of your SVS subs combined in comparison to a single Cap 4000. And, you may not need nearly that much output from a single sub. But, already having experienced multiple subs, I believe you will still benefit from having dual subs. The 300 watt SVS subs will not be able to provide any meaningful support at all to a Cap 4000. The output capabilities at every frequency, and the low extension, will be so totally different that they are likely to cause more cancellation effects than to help with frequency response or overall bass envelopment.
So, my advice would be to get a pair of Cap 2400's (which together will be even more capable than a single Cap 4000) or at least a pair of Cap 1400's or Cap 118HT's. You will never miss the somewhat obsolete SVS subs at all, and the bass effects will be spectacular compared to what you have been experiencing. I would give this idea some serious consideration if I were you.
With respect to a trial period, JTR does offer one with a full refund, but you have to pay the return shipping costs, which are not normally exorbitant. Not very many people end up returning their subs. I hope this helps!