Advice on horn building?

[JBLROCKS]

Hello

I am interested in building a horn system, Anyone know where I can find any plans/specs for building such a system?

I am thinking a folded horn woofer box and seperate mid and tweeter horns like the picture.....

Anyone have any ideas for the mid/tweeter horns?

Thanks

:cheers:

:rockon1:

[Robh3606]

If you are looking for an EXCLELLENT! all horn system take a look into the Edgar Titans. You can get them in a kit form if you are so inclinded. You will need a sub but that system is well worth the asking price IMHO.

Rob:)

[JBLROCKS]

Thanks for the info, where can I find information on the Edgar Titans?

:cheers:

[Robh3606]

Follow the thread at AA. His contact info is there. Also do a search at AA for Titans and references to the MAF Midwest Audio Fest there are other peoples opinions there too.

http://www.audioasylum.com/forums/hug/messages/84233.html

Rob:)

[duaneage]

make sure the WAF is taken into consideration before building them.

[jimafm]

You are headed in the wrong direction. Round horns have way too much distortion

[GordonW]

The name "Renkus-Heinz" mean anything to anyone? Their ovoid-shaped (elliptical round mouth) horns are some of the most highly-regarded low-distortion flares out there. I'd put them right up there with the JBL biradials. So, I wouldn't think that a "round" horn should be dismissed out-of-hand...

Regards,
Gordon.

[JBLROCKS]

I am open to different opinions certainly!!

This weekend I knocked together a couple of horns real quick, they don't look like much but they sound good :D

I am probably going to steer toward this style however I am open to discussion.

Anybody know where I can find plans for a folded bass horn type box?

[Hoerninger]

Hi,

may be you are still interested in a bass horn enclosure. I was long seeking and after I have got no reaction here on my answer concerning a computer simulation of the paragon I have decided to choose the following. There will be 4 basshorns for a auditorium - the woodwork ist still done - and extra midrange horns. In the near future i will know whether the computer simulation and the real speaker/horn combination will fit.

These horns are really huge and heavy but here they will not be transported.

You will find the plan here, mine is slightly modificated:
http://www.egbeck.de/15bhorn0.htm
___________

Regards
Peter

[CONVERGENCE]

If you want to mount JBL components. Why not use your own rear loaded and front loaded bass horn cabinets with HF horn on top.


http://www.lansingheritage.org/images/jbl/catalogs/1976-pro/page08.jpg


http://www.lansingheritage.org/images/jbl/catalogs/1974-pro/page10.jpg



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[toddalin]

It's alway been my idea to take a melmac (plastic) dish and cut it in half and mount it like baby cheeks to see what the effect would be. For the larger, flatter horns, I envision cutting a tray or pizza platter in half and mount the two pieces horn fashion. The "hollows" of the dish/tin could be filled with resin for dampening if desired.

In either case the shape and size could vary considerably to cover all range of freqencies and dispersion patterns. Also, would be relatively cheap to do, providing you have the right tools.

Unforetunately, I don't have the right tools nor do I have a nice driver around to try my ideas.:o:

[edgewound]

You are headed in the wrong direction. Round horns have way too much distortion

Maybe what you're thinking of is lobing that occurs when trying to array multiple round horns for even coverage in Sound Reinforcement work.

From a physical standpoint, round wave-guides have less distortion than rectangular horns due to the fact that they don't try to reshape the soundwaves into an irregular shape and as a result sound less honky and more natural...of course at the expense of pattern control....but that usually adds distortion...pick your compromise.

[spkrman57]

Rectanglular and square horns can't duplicate that!

Ron

[Mr. Widget]

I am sure that there will be those who violently disagree with me, but I have not found any correlation between round horns or rectangular horns and their sound quality. I have heard excellent round and rectangular horns and many, many absolutely terrible horns that were either round or rectangular.


Widget

[Ian Mackenzie]

You can't generalise..there are good and bad in all these just like DR devices.:)

[Hoerninger]

A good overview about horns you can find here:
http://www.peavey.com/Media/pdfs/qwp1.pdf

Although it's not JBL specific (Pavey) the differences between the following - and other - horns are explained
- conical horns
- exponential horns
- radial horns (Smith-horn)
- constant directivity horns (EV)
- Mantaray horns (Altec)
- Bi-Radial-Horns (JBL).

In the following thread you can found links to even more profound literatur:
http://audioheritage.org/vbulletin/showthread.php?t=1769&highlight=quadratic-throat+waveguide

@german readers:
There exists a german translation of the book "Winston E. Kock: Refraction Sound Waves",
easy to understand, lots of pictures
____________
Regards
Peter

[whizzer]

I tried the link (the first one) because I thought it sounded interesting, but the Peavey site says the page no longer exists.

Specifically, although I'm basically familiar with the various horn types you listed, I was curious as to the reason for the "Smith Horn" designation for the bi-radial type. Who was this Smith?

[Hoerninger]

I beg your pardon, I thought I had tested the link:
www.peavey.com/media/pdf/aa/qwp1.pdf

On page 3 of this paper you see straight sidewalls with a fixed angle. When the upper and lower sides are curved you will get a radial horn. If the upper and lower sides are in parallel and the flare is controlled by septas (?) then it will be a smith horn.

At http://audioheritage.org/vbulletin/showthread.php?t=9871&highlight=Smith+horn
you will see a beautiful original Smith horn. There is a paper by Smith and Selsted as well.
At http://audioheritage.org/vbulletin/showthread.php?t=9601&highlight=Smith+horn
there is an excellent home made horn. A further link shows a constructing drawing and pictures which show how to construct. (very inspiring!)
____________
Regards
Peter

[Hoerninger]

sorry - tilted

[CONVERGENCE]

There is one horn called parabolic. This concept is fairly new.


Attempts in the past were unsucesfull .With todays technology it is possible to attain greater distances and DB,without compromising quality.

[Hoerninger]

Speechless.
____________
Regards
Peter

[jbl_man_uk]

"Anybody know where I can find plans for a folded bass horn type box?"

Yes! you will find just about all types of horn plans here........and a great forum as well.

http://www.speakerplans.com/ :applaud:

[jaybird]

How would a 2235 work in a 4530 cabinet for home use ??