I would like to build a rear folded horn array with the same speakers. Can any one offer any critiques or possible design ideas? I drew up some rough plans with approximately an 8 foot horn path with a horn mouth about 10" wide by 24" tall.

I don't know much about the physics behind horn design. With all the information out there it's all a little confusing. Any help would be greatly appreciated.

http://www.billfitzmaurice.com/AutoTuba.html

Marlboro

Or if you don't want to do that, then the only person I know of who could advise on how to do an array of folded horns would have to be Bill.

Essentially..... I have an array of sealed mid-ranges. Each one is a sealed separate speaker piled on top of each other. Same for the tweeters. Why would woofers be any different? I would never even consider putting any of the individual speakers in an array in the same enclosure, that's COLORATION LUNACY!

Marlboro

• http://melhuish.org/audio/

I haven't been able to find any information on a combination mid-low frequency line array, rear folded horn.

Marlboro, is this what you meant when you said it would be coloration lunacy?

I am not looking for a horn woofer array. I am toying with the idea of a dual 8" loaded Bill Fitzmaurice Table Tuba, if I need it.

I didn't understand what you were trying to do. That's a pretty interesting concept. I've no idea whether it would work or not. Again, Bill Fitzmaurice would be the person to ask, I should think.

What I meant by coloration, is that to put a bunch of speakers in the same box means that their combined radiations will muddy the sound coming back through the front.

I used a separate enclosure for every speaker in my 34 speaker midrange part of the array. I used 4 lb cu ft fiberglass in tubes which eliminate most of the radiation coming back out the front. Tube enclosures eliminate muddy odd ordered harmonics by the physics of sound in tubes, so that only even ordered harmonics return through the front of the speaker, and in small quantities lend clarity not warm muddiness. The result is a line array with exceptional clarity in the midrange. I further augmented this by fixing it so that even electronically there was no chance to muddy up the mid range by having transients from the bass interfere with the waveform, since I tri- amped the system, and the woofers and tweeters have their own completely different amplifiers. Finally, I kept the midrange as sonically pure as possible by not breaking it up in the middle with a crossover. The midrange is covered from 165hz to 2500hz with the 34 mid range speakers.

Its was just how I put it together, but no one else has done this that I know of, and so from experience of they synergy of this, no one else knows how significantly all these parts fit together. This is what I meant when I was talking about coloration.

Marlboro

I am just wondering how big of a sound stage a line array with a front exiting horn section. This makes the boxes a total of 72 inches tall with the bottom of the box being a horn mouth at least 24 inches tall.

Line arrays already sound incredible for as cheap as my speakers are. What can a horn reinforced wave front do?

Yeah.... no center channels wanted or needed.

Thanks for sharing.

Marlboro