DIY tweeter for Fe126En back loaded horns

[maspix04]

Dear forumers

I'd like to add some top end to my Fe126En back loaded horn. Although I' m really pleased with the sound I'm missing some top sparkle and detail.

Any suggestions?

I would greatly appreciate if the proposed driver-components combo are easy obtainable in Europe as I don't want to mess with customs and stuff.

Thanks in advance

 

[Inductor]

Hi maspix04,
You are welcome.
Why not to put to the test an excellent tweeter driver, Beyma T2030, 95dB hi-fi tweeter?! Have fun.
http://profesional.beyma.com/ingles/pdf/T2030.pdf
Beyma T2030 - Thomann UK
6moons audio reviews: JLA Acoustique Perspective 2 Signature + Stand 80 (pic)

 

[chrisb]

If you found the FE126 easy to obtain in Europe, why not the FT17H, with a simple 1st order cap, and maybe L-pad pot?

Frankly I'm a bit surprised that you find the 126s shy up top - a lot of folks find they need some help in the bottom, even with a good BLH. Is it perhaps their forward upper mid-range presence that could be getting in the way? If so, that's not too difficult to tame with a gentle touch of EQ

 

[joern]

Hi

a very simple and cheap - but also very nice sounding - tweeter is this little Vifa/Peerless: http://quint-audio.com/qaudio/files/bc25sc06-04_rev1_0.pdf
and loud enough for the 126.

a few time ago I mounted it in a bass-refley-tube:
http://imageshack.us/a/img811/5344/ax8htergnzung.jpg

a little larger: Vifa/Peerless H26TG-35-06
http://quint-audio.com/qaudio/files/h26tg-35-06_spec_sheet_rev2_0_052312.pdf

The Morel CAT-378 would fit also - for my ears a littlebit to "smooth"

and... very nice:
AddOn
using BMS4524-driver.

 

[Inductor]

OP, thanks for your PM.
I' m not an electrical engineer neither, so excuse me for my vocabulary sometimes.

To make a good crossover (@12KHz) you might need real world experimenting/testing. If using one element (cap) will be a 1. order 6dB per octave slope, if a 2 element (cap/coil) a 2. order 12dB.
In your case maybe using/testing a 1uF to 0.5uF cap to start. After you find your results, if the right slope (1. order vs. 2. order) check if the level is right, if you need attenuation or not. That can be also accomplished with a resistor or Lpad/attenuator. Use the Resistor and Capacitor in series if you need attenuation.
Crossover Design and Theory - Aperion Audio

I have no way of confirming what parts you are going to need without experimenting, after all it's your project not mine. (Maybe your fullrange is not enough in the HF domain, I'm guessing here.)
If you need crossover components of good quality after (or for) testing look below.
https://www.intertechnik.com/Shop/C...Audyn-Cap-Plus/_PLUS-068-08_1768,en,280,46729
https://www.intertechnik.com/Shop/C...sistors-10-Watt/_MOX10-10-2_1768,en,895,47109

As an example of using a small cap with an attenuator (maybe you don't need one) look at the example of the Fostex FT17H.
http://www.fostexspeaker.de/tweeter/horn/ft17h.pdf

 

[hifisucks]

Hi, I am realizing a silular situation and wood like to know if the 126 must be set with a crossover too? Or just the tweetwr? Let the ears make the descission?
chris

 

[chrisb]

As there's likely no harm to be incurred by running the FE126 without filtering its top octave or so, if all you want to do is fill in above say 8-10KZ, a simple first order HP on whatever tweeter you select would probably be quite adequate, and certainly very simple to implement .

 

[hifisucks]

Hello to Canada! Thanks for the fast reply!
Yes indeed, I already made that experiance in the first order... I ended out with about 1.49uF... see picture...sounds good on me ears!

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Thought there might be some audio nirvana lyeing in shaving off the 126 a little...
I do not know my tweeters brand...
But now I have just more hearing satisfaction to the natural sqeeikyness of some instruments...hahaha