I've corrected dimensions and have written a check list of all elements.
View attachment ConcertiFe166En_BOM.zip
View attachment ConcertiFe166En_BOM.zip
I'm just curious Gemil. Do you have equipment to cut something like this ?
http://telavox.1616bbs.com/bbs/data/telavox/img/43_4e52204cdb.jpg
Back Loaded Exponential Curved Horn Speakers - TelaVox annex to TelaAudio�bSpecial Ordered Pianoblack Backloaded Horn Speakers
Looking for another back loaded horn projects in the internet I found
similar design but with strangely shaped mouth so called "k-slot contour"
Acoustic Horn - Backload K-Horn
Is there any practical point in using it instead of rectangular one ?
similar design but with strangely shaped mouth so called "k-slot contour"
Acoustic Horn - Backload K-Horn
Is there any practical point in using it instead of rectangular one ?
well done patrida!!!..
seems as a very promissing project..but i think that it would be nice if some measurments could be done too..just for curiosity reasons!.
seems as a very promissing project..but i think that it would be nice if some measurments could be done too..just for curiosity reasons!.
To GafHenderson :
Thanks for the compliment
To JC Fardo :
My electronics are not that important anymore, I'm working on a large 3-way design (non plus ultra). Most people , who actually build my design , discovered a nice little amp (see pic) : the Aurexx CRISTAL , 2x3 watt SE el84
In other countries it is called Jama. A complete run on second hand gear followed ! Now , about 2/3 own an amp like this.
To Dzius :
First a thank you for the checklist.
About the K-slot horn ; I've already seen it and took another look today.
Want do any discussion about the 2 designs. Seen that the other designer "set" the same smart angle in the top baffle!!
If you build a set of mine : make a removable front-lower-baffle with 2 inserts:
one square and one with an exponential slot and try for yourself!!
Give us your results!!
BTW, saw your webside and have a small remark : My design is for DIY ONLY!!! free for everyone!! and not for commercial use.
If you intend to do so and build more then one set , contact me first!
To Sifis_ : No measurements!! Read the whole thread I've already explained it earlier.
If you look at Fostex rec. designs , you will find measurments. This design will be very simular (maybe a little smoother!!)
Thanks for the compliment
To JC Fardo :
My electronics are not that important anymore, I'm working on a large 3-way design (non plus ultra). Most people , who actually build my design , discovered a nice little amp (see pic) : the Aurexx CRISTAL , 2x3 watt SE el84
In other countries it is called Jama. A complete run on second hand gear followed ! Now , about 2/3 own an amp like this.
To Dzius :
First a thank you for the checklist.
About the K-slot horn ; I've already seen it and took another look today.
Want do any discussion about the 2 designs. Seen that the other designer "set" the same smart angle in the top baffle!!
If you build a set of mine : make a removable front-lower-baffle with 2 inserts:
one square and one with an exponential slot and try for yourself!!
Give us your results!!
BTW, saw your webside and have a small remark : My design is for DIY ONLY!!! free for everyone!! and not for commercial use.
If you intend to do so and build more then one set , contact me first!
To Sifis_ : No measurements!! Read the whole thread I've already explained it earlier.
If you look at Fostex rec. designs , you will find measurments. This design will be very simular (maybe a little smoother!!)
Attachments
King Leonidas you're completely right
I just noticed that Bill Woods RCA-fan Backload K-Horn is very similar to your design, so both should works similarily good. Not only is the idea of removable front smart but very handy also. Thank you !
I just noticed that Bill Woods RCA-fan Backload K-Horn is very similar to your design, so both should works similarily good. Not only is the idea of removable front smart but very handy also. Thank you !
yes my friend i already read it that you say so.. anyway, i will try to build something like that, once. my only concern is space, as all my rooms are quite small and i cand sacrifice a lot of space for 2 speakers...
Thanks for all your effort to present your beautiful project!
Thanks for all your effort to present your beautiful project!
To Dzius :
If you want to do your own design , feel free to do so.
Don't change my design under my name!!
We went a long way until I reach this design ;
Pics included of the MK1 version WITH reinforcements on top and back.
After using the ATB precision system with an acceleration element I concluded that there is NO need for top reinforcement.
Also there is no "hole" in the fr.range ; so no need for a "supra-Baffle"!!
We also clamped a stroke of MDF in the centre of the mouth for checking side wall vibration!! There was so little vibration that I left this reinforcement out just for the better LOOKS!!
So feel free to do your own design but don't change mine!!
This is a proven design that made about a douzen of people very happy!!
If you want to do your own design , feel free to do so.
Don't change my design under my name!!
We went a long way until I reach this design ;
Pics included of the MK1 version WITH reinforcements on top and back.
After using the ATB precision system with an acceleration element I concluded that there is NO need for top reinforcement.
Also there is no "hole" in the fr.range ; so no need for a "supra-Baffle"!!
We also clamped a stroke of MDF in the centre of the mouth for checking side wall vibration!! There was so little vibration that I left this reinforcement out just for the better LOOKS!!
So feel free to do your own design but don't change mine!!
This is a proven design that made about a douzen of people very happy!!
Attachments
OK. Point taken. Terry Cain in his Single Horn Ben (Lovecraft Designs Audio Equipment ) uses round baffle and it looks fine. So maybe there is only aestetic need for that but no harm in using it.
Even though stiffen elements are not so important nonetheless can be useful as an aid in assembling whole enclosure I think. One doesn't need to glue them.
It's nice to hear you have tested so many options .
Even though stiffen elements are not so important nonetheless can be useful as an aid in assembling whole enclosure I think. One doesn't need to glue them.
It's nice to hear you have tested so many options .
Keep up the good work!!
Fill up the triangular holes to avoid resonances.
(You can use dry sand)
Did you recalculate the first part of the horn??
By adding reinforcements you also change the compression ratio by aprox. 10%!!
Fill up the triangular holes to avoid resonances.
(You can use dry sand)
Did you recalculate the first part of the horn??
By adding reinforcements you also change the compression ratio by aprox. 10%!!
Yes I'm planning to fill triangular empty spaces with sand of course. Reinforcement in the first two part of the horn are pretty thin i.e. 8 mm. So compression ratio will change much less than 10% I believe. But I didn't do any calculation. How you judge it then? Tell me before I mount side panels.
I can phase them out if necessary.
I can phase them out if necessary.
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Leon,
Really nice description and photo's, one of the best threads I've seen. It's also really nice to have a chance to learn about the small things to take care of in construction that you have developed. I have bookmarked this one !
If I can ask you an off-topic question - did you ever think about a design for a 2-way with cross-over around 300Hz - essentially something to provide full range with supporting bass driver ? Since BLH have limited bandwidth I thought this approach may allow more optimization.
Really nice description and photo's, one of the best threads I've seen. It's also really nice to have a chance to learn about the small things to take care of in construction that you have developed. I have bookmarked this one !
If I can ask you an off-topic question - did you ever think about a design for a 2-way with cross-over around 300Hz - essentially something to provide full range with supporting bass driver ? Since BLH have limited bandwidth I thought this approach may allow more optimization.
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