BLH design for FaitalPRO 3FE25? - diyAudio
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Old 20th May 2016, 02:28 AM   #1
unaHm is offline unaHm  United States
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Default BLH design for FaitalPRO 3FE25?

Dear all,

I was wondering if anyone here had made use of the FaitalPRO 3FE25 speakers in a back-loaded horn design, or if there was a suitable design out there that could accommodate them.

They're great speakers, but I'm currently not using them, and I'd love to!

Thanks in advance for your help!

Dan
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Old 20th May 2016, 03:18 AM   #2
adason is offline adason  United States
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Why? You are likely to fail to produce any reasonable bass from 3" mid-tweeter in no matter what backloaded.
Why not fast.
Do not take me wrong, i like faitalpro. I am just being realistic.
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Old 20th May 2016, 03:39 AM   #3
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You might be surprised how much bass can be had… not low bass thou. Just enuff to give you that impression.

They should work in the Frugel-Horn Lite. You may have to use more stuffing than is usual under the driver.

Click the image to open in full size.

dave
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Old 20th May 2016, 03:47 AM   #4
adason is offline adason  United States
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Can you post an honest fr response?
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Old 20th May 2016, 04:10 AM   #5
unaHm is offline unaHm  United States
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Quote:
Originally Posted by adason View Post
Why? You are likely to fail to produce any reasonable bass from 3" mid-tweeter in no matter what backloaded.
Why not fast.
Do not take me wrong, i like faitalpro. I am just being realistic.
Thanks for the input adason! I'd read around this forum, and seen the concerns regarding the speaker's performance below 200Hz, so my guess would be to just cater for that.

Quote:
Originally Posted by planet10 View Post
You might be surprised how much bass can be had… not low bass thou. Just enuff to give you that impression.

They should work in the Frugel-Horn Lite. You may have to use more stuffing than is usual under the driver.
Thanks Dave! It sounds like the Frugel-Horn Lite would work well coupled with a sub or two crossed at 160Hz or something like that. I use the Bill Fitzmaurice T18s, and they do quite well up to 300Hz.

My plan is to use them with a television, but it doesn't need to be a dynamic listening experience, so a thinner Bass response might be more appropriate

Does corner-loading the Frugel-Horn Lites assist their response?
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Old 20th May 2016, 04:14 AM   #6
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Quote:
Originally Posted by unaHm View Post
Does corner-loading the Frugel-Horn Lites assist their response?
Yes. That is how they should be used for maximum bass.

Measuring the response of a back-loaded horn in a room is a can of worms because the room dominates. Move the mic a couple inches and you can have something that looks quite different.

The sim with the FF85wk shows an F10<75Hz. How low it goes in a real room is dependent on the room and the placement in it.

Click the image to open in full size.

dave
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Old 20th May 2016, 05:07 AM   #7
xrk971 is offline xrk971  United States
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This FH3 inspired BLH was made before I had a mic but the bass was rich and full. Tc9fd so 3FE25 should be similar.

FH3-inspired Foam Core Mini Build

Jim Shearer built it too and thought it sounded good.
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Old 20th May 2016, 08:30 AM   #8
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Seeing these sell for 2500$, and getting quite good reviews, makes the question understandable, I'm considering a pair of Tabaqs myself.
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Old 20th May 2016, 10:17 AM   #9
hm is offline hm  Europe
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Thumbs down 3" driver BLH

Hello,
i made a few BLH for 3", i will test the 16 Ohm in a double horn with 2+2 driver.
Flute sat down to 100 Hz
or the double horns Mini-Posaune, Trombone, Kornett for 2+2 16 Ohm.
Flute
MiniPO
trombone
and new the double horn sat down to 100 Hz, driven with only 110 µF
gets a low membran movement and a superb soundstage near a wall 10-20 cm
http://www.hm-moreart.de/136.htm

Mini Posaune mit 2 x scan speak bass down 35 Hz in my 22 qsm room,
sensational IMP, compair it with any other construction!
real measurements look for example the single simulations below the Kornett measurements
Attached Images
File Type: jpg minipo1m0°.jpg (107.7 KB, 200 views)
File Type: jpg miniposaune2web.jpg (274.6 KB, 198 views)
File Type: jpg minipoImp.jpg (78.5 KB, 196 views)
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Last edited by hm; 20th May 2016 at 10:22 AM.
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Old 20th May 2016, 11:15 AM   #10
DrBoar is offline DrBoar  Sweden
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A Swedish guy called Linnar did make som FLH for a 4" that could play loud, fully horn loaded that is. a BLH need to transit to a direct radiator above the horn range, here is where things fall appart for small drivers. If the transition is in the 100-200 Hz range the main power octaves is handled by a small direct radiator
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