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-   -   Fr125s Horn (http://www.diyaudio.com/forums/full-range/78212-fr125s-horn.html)

inrank 22nd April 2006 05:20 PM

Fr125s Horn
 
just out of interest, has anyone tried the FR125s in a Horn loaded enclosure (apart from the PAWO @ http://www.audio-resolution.com/zhorn/fr125s.html)?
would be interested im mabye making a 'relatively' small one sometime
;)

thanks

Geek 22nd April 2006 11:15 PM

IIRC, when I ran it through HornResp, the Q was a wee high for a flat response :(

inrank 23rd April 2006 09:07 AM

is there any enclosure to get a 'larger' sound from this driver and take advantage of its bass and xmax?

Geek 23rd April 2006 06:11 PM

There was some work done on MLTL's with this driver. Too little bass isn't it's problem though, most of us have to cut it back.

I wonder if anyone's tried a Voigt pipe though?

Ummm, what else... bipoles sound great, as do mini Onkens.

You'll find with any enclosure that you'll run out of Xmax long before power handling with bass below 100Hz.

lovechild 24th April 2006 11:45 AM

Hi

Quote:

Originally posted by Geek
IIRC, when I ran it through HornResp, the Q was a wee high for a flat response :(
With the hight Q it might work in a BIB though, which basicly is a backloaded corner horn - ask scott in the BIB thread, he might come up with a sim for the FR125.

best, LC

inrank 24th April 2006 01:27 PM

they look good but they look a little to tall for me, looking for somthing not much more than 3' tall :)

GM 24th April 2006 02:08 PM

At 3 ft high, it will need to have a large footprint on the order of ~2 x 3 ft unless corner loaded.

GM

inrank 24th April 2006 02:10 PM

yes, 3' ish but it does not need to be a BIB, just an enclosure around 3' tall that will get the best out of the fr125s.
in terms of design i like the PAWO but from what i have read, its flawed.

GM 25th April 2006 12:02 AM

Greets!

So I've read. In my horn designing experience it appears to be too small, so I'm not surprised.

Anyway, to get the 'best' out of this, or any ~FR driver really, is to mount it on an open baffle and XO it to a large woofer or four. Once you move away from this alignment it becomes a matter of trade-offs, so other than height, what are any other limitations because like I said, a cab with enough gain/BW to keep it from bottoming at rated power down to below 40 Hz will be relatively huge.

GM

inrank 25th April 2006 07:41 AM

so can i make a relatively small open baffle that is around the same size a the PAWO?

i have a sub already so i could its high pass filter to cross it at 80Hz.


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