Anybody built a transmission line subwoofer?

Digging this back up.

So Dr, how are your math skills? Because...

http://www.quarter-wave.com/TLs/Calculation_Algorithm.pdf

That's well beyond anything I've ever had to do.

I ran across that web site a while back. I peed my pants just to have a reason to walk away from the computer.

I'm still planning on the build, just decided to get my theater built first since then, I'll have almost limitless possibilities as far as size and placement goes.

The ridiculous thing about those calculations (and every other multi-page formula) is that, there IS NO formula. There are formulas that get you close, in the ball-park, but it's not like building a typical, sealed or vented enclosure. There's some trial and error to it.

There's a trial and error component to any speaker build, regardless of cabinet design

Are you going to build one or two?

I'm wondering it two, tuned slightly different wouldn't sound better.

I'm Resurrecting this thread because I'm finally ready to get rockin and rollin on this and there was some interest.
I have a Build Thread for the home theater I'm building. I'm Starting the subwoofer(s) build Tuesday. i'll keep you in suspense as far as the cabinet I chose....

It'd be interesting to see how the T-line sub works out. I think when it comes time for me to build my first sub, it'll likely be something similar to what I'd suggested in the other thread.