So I got the 15" Titanic MKIII. My wife ultimately nixed me getting an HDTV, but said I could spend the money on a subwoofer. Truth be told, I'm more musicly inclined anyway, so a sub rather than an HDTV was okay by me. So with approx. $2500 budget in hand I sought out a new sub, and came in almost 80%under budget.

A recent thread on diminishing returns got alot of action. For the record, I discovered that dimishing returns sets in for me on subs at about $580. or the cost of the Titanic. I went to all the shops in my area and looked at Paradigm, B&W, Dynaudio, Velodyne, ect. It didn't take me long to figure out that a really didn't want to pay retail mark up on a sub. Besides, only the Paradigm 12" Seismic and Velodyne SPL15 intrigued me, and both seemed to be trying too hard to get big sub permormance out of a small box.

So then I considered all the usual suspects for online shopping. SVS, HSU, Rocket, Axiom.

I got it narrowed down to the expensive option: Velodyne SPL15; the middle option: SVS 16-46 PC-Plus; the cheap option: the Titanic; and the wildcard: Dual Rockets. With sealed subs getting preference over ported.

Ultimately I decided on the Titanic because it is big honkin' driver; with a big honkin' amp, in a big honkin' sealed box. The Velodyne seemed gimicky and too reliant on extreme cone travel. The SVS while nice, apparently uses the same Dayton driver. Looking at the pictures on the websites the SVS driver used in the PC-Plus line looks suspiciously like the Titanic. Given that SVS and Dayton are both in Ohio, it was a coincidence that can't be ignored.

Needless to say, I'm very pleased with my choice. Since size and appearance wasn't really an issue to me, the Titanic was a great option.
Appearance wise: The Titanic looks much better in real life than it does in pictures. The website pics don't do it justice.
Size wise: It seems that with subs alot of manufacturers are trying to get around the fact that size can really be an important factor in good performance. Bigger is often better.

As for performance, I've got a reasonably smooth response from 20hz - 80hz +/- 4db with a nasty -9db dip at 40hz at listening position. But a dip is better than a hump, IMHO. I'm using the built-in single frequency parametric eq and a cheap old Teac graphic eq just for goofs. I'm gonna add either the BFD or a different analog Behringer GEQ. The BFD seems more targeted, reliable, and respected, but the GEQ may be fun too and allow me to mess around with EQing my mains too. Its like I'm a kid in a candy store knowing that I can get flat from 20-80hz +/- 2or 3db, the fun part is thinking/figuring how to get there.

My only complaint is the lack of a logo on the grill. This is a nice enough product that someone should be taking credit for it.

Thanks for letting me share.