November 29th, 2017, 5:29 pm
Roscoe Primrose wrote:You might also consider a TQWP/TQWT design. I've got a pair of the Dayton PS-220s (I think that's the right number) TWQPs in the home theatre, and they do quite nicely. You're welcome to come out and hear them sometime, I can easily put them in the main system.
Roscoe
November 29th, 2017, 7:41 pm
November 29th, 2017, 8:05 pm
November 30th, 2017, 10:31 am
LewisMT wrote:Thanks very much for the kind offer to hear your TWQPs. I'd like to take you up on it. Where do you live?
My understanding of that type of enclosure is limited to what I've read on various DIY sites, mostly referencing Martin King's work. I haven't built any yet. Aren't they designed to extract all the deep bass possible, or are they also useful for midrange?
November 30th, 2017, 2:53 pm
brombo wrote:If you are a competent woodworker you might consider making a wooden midrange horn preferably for a 2 inch driver. Compound curved surfaces are not needed. A straight exponential design could be accomplished with thin plywood (1/8" baltic birch) and heavier bracing. The trick is to print out the flattened top, bottom, and sides (some math required) and from the printout make a thin (1/8" fiberboard template). This could be cut out slightly over sized with a jig saw and sanded to the shape of the printout that was cut out and glued to the fiberboard. Then the fiberboard and a router (template bit) could be used to cut the plywood. Alternatively, if you go to someplace like the woodworkers club that has a large numerical controlled router table the plywood top, bottom, sides, and braces could be directly cut out. An adapter to go from a round driver to a square throat could be fabricated on a 3d printer available at several different types of hobby clubs these days.
If you want to go whole hog a numerical router could cut compound surfaces for more advance horn designs.
November 30th, 2017, 2:55 pm
ratbagp wrote:You might also consider a Synergy horn or one of the variants.
http://projectgallery.parts-express.com/speaker-projects/synergy-horn/
There are quite a few threads on diyaudio.
ray