Years ago I built up a pair of LT-2000 speakers from Bob Brines.
They were a lot of fun (though I kind of wrecked my hands with all the clamping for glue ups). I sold them in the end because I needed more low end and didn’t want to introduce a subwoofer. I didn’t do any of the electronics and had the mdf cut by a pro.
The design was for a “Mass-Loaded Transmission Line Speaker”.
I don’t have any photos of my own but could send you a pdf of it.
It was ported with a single driver, yes.
Years ago I built up a pair of LT-2000 speakers from Bob Brines.
They were a lot of fun (though I kind of wrecked my hands with all the clamping for glue ups). I sold them in the end because I needed more low end and didn’t want to introduce a subwoofer. I didn’t do any of the electronics and had the mdf cut by a pro.