I've been playing with this driver in an adjustable length straight
pipe TL just to get familiar with the TL concept. It's been fun to see
how the stuffing and length changes the sound.

I've calculated the dimensions for a voight pipe (it turned out to be
a scaled down version of Mr. Brines straight pipe that used the RS
40-1354a. I used an Fs of 70 Hz vs. 55 Hz). I may build it to see how
it works.

I'm interested in the MLTL design.

I'm curious if anyone has tried the Tang Band W4-1337 in a MLTL.

Thanks