DIY high end speakers?

I've been researching this as well, and one of my favorite designs is the single, full-range, rear-loaded horns.

www.frugal-horn.com has many free designs, and forums of users that have built them. Good info.

Mot

Check out the Parts Express Tech Talk board. Lot's of DIY activity and tutoring on developing the speaker of your dreams if some of the off the shelf DIY designs aren't quite what you're looking for.

Tamule1, which speakers did you build by Troels? I have been looking at his designs for awhile now.

To the OP, you may want to check out GR Research which has a site on Audio Circle dot com.

Timlub, rather than hijack the OPs thread could you PM me as I would like your opinion on which type of speaker you think would work best in my very large but difficult room
Thanks gregfisk@aol.com

Kooshballa, you'll need 88db sensitivity minimum with an impedance of 6 to 8 ohms nominal. I would not suggest a 4 ohm speaker for your power. Next, with the music that you listen to, my instincts/experience says that you would most likely like a speaker that is not bass shy, maybe even would like a touch extra as long as it is tight, natural mids with smooth top end. Imaging is a response of phase & time alignment, so that can be handled, Let me know if I am on the right track and please include a budget for speakers and crossover components, assuming that you will be doing your own wood working.
If needed for your and Gregfisk, my email is timlub01@charter.net
I am writing this Saturday afternoon, but be aware, that I'll be in DC Sunday through Wednesday and gone again to Vegas the following Sunday through Thursday.
So, I've got tonight then a couple days next week, after Vegas, I'm home for 2 months.

Building a pair of speakers now. Not a kit. Don't think you would like the construction because there's hardly any wood. Sealed, vertical 10" PVC pipe and epoxy urethane "saddles" (for lack of a better term) to mount the drivers. Closest comparison in appearance might be a B&W Diamond Signature. Four GR Research 165X's per side and a BG Neo3PDR tweeter in a 2.5 way series/parallel MTMWW arrangement. All four 6.5's handle the bass but the lower 2 drivers roll off earlier for baffle step compensation and to raise impedance in the lower octaves. They can share a common air space because it's just a bypass cap without the phase shift of an parallel inductor. Second order Bessel crossover at over 1800Hz with 0.6 Erse air core coils, 6.2uF Sonicaps (maybe with some small bypass caps). Milspec wire and adjustable stereo Lpads (at least for now), wired in parallel because they don't make 4 ohm versions. Built with a subwoofer, or two, in mind.

Except for the rap, my musical tastes aren't too different.
Should be fairly obvious that I like it loud.

Warning: Forget the budget. Little things tend to add up and mistakes get costly.