folded horn midtop

does anyone on here have a plan for a folded mid horn plan for midtops similar

what frquancy range was you hoping for...... most midtops have a straight horn due to the shorter wave lengths needed........

One thing I would add here, and this is from personal experience, The path length can be interrupted with a simple fold as long as the throat area is smaller than the highest wavelength at the x/o point. I did this with my MT502's and 602's where the speakers were at right angles to the mouth of the Horn. The success of this will be dependent on what horn you have above, because in these cabs, I couldn't go any higher than 1.2k out of the mid.

I am pretty new to all this, but the only folded horn designs i have seen for tops are the bill fitzmaurice DR series. they are rear-loaded horns, and use a spliced peizo array, or cd horn hi's, depending on the model. billfitzmaurice.com/DR280.html not what i would concider an easy build, but charts are very admirable.

The path length can be interrupted with a simple fold as long as the throat area is smaller than the highest wavelength at the x/o point

Could you eleborate on this? I mean are you talking about the width or height of the throat, the diameter of the driver circular cut out, the diameter of the square/ circle that has the same area as the throat (in case of a rectangular throat)?

@cagedANIMAL: I'm pretty sure they're front loaded horns

Best regards

Cubo

the omni's and jacks are front firing. the DR'S actually have the driver firing to the rear, much like and elaborate "w" bin, with rounded deflector panels in the back. neat design, but i wouldn't have the woodworking chops to pull them off, i fear.

Cubo15 wrote:

The path length can be interrupted with a simple fold as long as the throat area is smaller than the highest wavelength at the x/o point

Could you eleborate on this? I mean are you talking about the width or height of the throat, the diameter of the driver circular cut out, the diameter of the square/ circle that has the same area as the throat (in case of a rectangular throat)?

@cagedANIMAL: I'm pretty sure they're front loaded horns

Best regards

Cubo

like this cubo,

there are a few designs that use this type of loading like the martin philishaves, Its a 2x12 with a 1.4 comp... the 12's were good up to 1.2k.... any frequencys shorter than the driver to main horn throat cancel each other out...

@cagedANIMAL: Orignally rear loaded horns had the rear of the driver loading the horn, with the front directly radiating (like a scoop). Whilst front loaded horns had the front of the driver loading the horn and the rear enclosed by a chamber (like a W-bin). I guess those names kinda stuck around. The actual driver orientation inside the cabinet is not adressed, so a rear loaded horn with the front of the driver firing into the horn and the rear of the driver directly radiating is still a rear loaded horn. And a 30 degrees to the South-East loaded driver is still just a front or rear loaded horn (or tapped, or hybrid, or band pass, etc. but front and rear are still the main entities).

@Bee: Thanks for the explanation, I'll have to read it in about 10 day's though because on this computer (browser IE8) I can't see past the reply button

Best regards

Cubo

In fact just after posting this it changed to not beyond the quick reply button.

And now I can see the quote button but I have no idea who I'm talking to, this is getting silly.