Frugel-Horn Mk3

planet10 · 27th August 2010, 03:17 AM

Simplier, smoother, more versatile, a bit taller... discontinuation of FE126e had us starting over, hence FH Mk3.

After a couple iterations and a failed alpha build, we trialled a design at the recent VI diyFEST we are happy with. The alphas were built with removable drivers and we tried it with FE126En, CHR-70, EL70, and Alpair7,

Now we are ready for some beta builds.

dave

Frugel-Horn Mk3 Builds & Build Questions (current plans posted here, see post 1 for where the most current are)
FH3 Picture Gallery

Short cut to the plans: http://www.frugal-horn.com/downloads...1v0-060518.pdf

edjosh23 · 27th August 2010, 03:22 AM

Those look great! And Easy!
Tell us about the enclosure.

Josh

LCole · 27th August 2010, 04:04 AM

Looks more like a rear firing folded voigt with a horn thingie attached to it. Wasn't the original frugel a true horn. That would account for the unique sounds these two cabs make. Still, a very graceful appearing speaker cab- regardless of what you want to call it.

Godzilla · 27th August 2010, 04:05 AM

They look somewhat like a folded voigt pipe or straight pipe. I wonder the effect of the curved rear opening? I'm sure it alters the sound but curious if there is a reasoning behind it. This design looks like it can be unfolded so we can all start building things like we used to for the RS 1354 and 1197. I love the simplicity of the folds. Btw, are those BIBs in the background? Also, i wonder if a 'simple' build can be done with 90 degree angles and just an opening at the rear without the curves. Perhaps a less ambitious design but satisfying... then we can all buy drivers and start building again! I'm excited about the new design! Thanks for sharing!

Godzilla

LCole · 27th August 2010, 04:23 AM

Would that make it a hybrid as it appears that the throat of the horn starts at what would be seen as the exit port on this particular example below:

diytube.com :: View topic - Show me your DIY Speakers !

That would make the rest of the cab a 'tuned' compression chamber where the higher freqs are filtered out by the length and folds of the transmission line prior to reaching the throat of the actual horn.

Would raising the height of the 'throat' to the width of the line proceeding the throat and extending the length of the line to tune the frequency be more in line with the definition of a true horn? Or at least qualifying as a tapped horn?

Still, I love the looks of this new cab. Looks like a fun build. Maybe some variation to accomodate the b20's could be in the works? Now would be the time and palce for that now that they are available on the cheap for expirementation.

LCole · 27th August 2010, 04:35 AM

Quote:

Looks more like a rear firing folded voigt with a horn thingie attached to it.

Quote:

They look somewhat like a folded voigt pipe or straight pipe

Simul-post!!!

Crossblade · 27th August 2010, 07:31 AM

I am sad that I do not need a pair, they look lovely!

yoshisoakland · 27th August 2010, 08:42 AM

Are the plans published already?

Phil Townsend · 27th August 2010, 09:27 AM

How did you like the Mark Audio Drivers in this box?

SemperFi · 27th August 2010, 09:31 AM

Quote:

Originally Posted by Crossblade

I am sad that I do not need a pair, they look lovely!

We all need a pair at times. Though sometimes they can grow a bit large and we need to get back to earth. The way it is to be a man.

27th August 2010, 03:17 AM	#1
planet10 frugal-phile(tm) diyAudio Moderator Join Date: Oct 2001 Location: Victoria, BC, NA, Sol III	Frugel-Horn Mk3 Simplier, smoother, more versatile, a bit taller... discontinuation of FE126e had us starting over, hence FH Mk3. After a couple iterations and a failed alpha build, we trialled a design at the recent VI diyFEST we are happy with. The alphas were built with removable drivers and we tried it with FE126En, CHR-70, EL70, and Alpair7, Now we are ready for some beta builds. dave Frugel-Horn Mk3 Builds & Build Questions (current plans posted here, see post 1 for where the most current are) FH3 Picture Gallery Short cut to the plans: http://www.frugal-horn.com/downloads...1v0-060518.pdf __________________ Stay safe. Stay home. Respect the 2m bubble.

27th August 2010, 04:05 AM	#4
Godzilla diyAudio Member Join Date: Nov 2005 Location: New York	They look somewhat like a folded voigt pipe or straight pipe. I wonder the effect of the curved rear opening? I'm sure it alters the sound but curious if there is a reasoning behind it. This design looks like it can be unfolded so we can all start building things like we used to for the RS 1354 and 1197. I love the simplicity of the folds. Btw, are those BIBs in the background? Also, i wonder if a 'simple' build can be done with 90 degree angles and just an opening at the rear without the curves. Perhaps a less ambitious design but satisfying... then we can all buy drivers and start building again! I'm excited about the new design! Thanks for sharing! Godzilla __________________ https://speakerprojects.wordpress.com https://jefffeith.wordpress.com/books

27th August 2010, 09:27 AM	#9
Phil Townsend diyAudio Member Join Date: Jun 2004 Location: Santa Fe, New Mexico	How did you like the Mark Audio Drivers in this box? __________________ Phil Santa Fe

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
The Frugel-Horn Project	planet10	Full Range	1227	30th September 2020 02:21 AM
My Frugel-Horn Build	italynstylion	Full Range	130	22nd June 2010 12:24 AM

New To Site?	Need Help?
Register to Participate Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

27th August 2010, 03:22 AM	#2
edjosh23 diyAudio Member Join Date: Oct 2004 Location: Raleigh/Atlanta	Those look great! And Easy! Tell us about the enclosure. Josh

27th August 2010, 04:04 AM	#3
LCole diyAudio Member Join Date: Aug 2009	Looks more like a rear firing folded voigt with a horn thingie attached to it. Wasn't the original frugel a true horn. That would account for the unique sounds these two cabs make. Still, a very graceful appearing speaker cab- regardless of what you want to call it.

27th August 2010, 04:23 AM	#5
LCole diyAudio Member Join Date: Aug 2009	Would that make it a hybrid as it appears that the throat of the horn starts at what would be seen as the exit port on this particular example below: diytube.com :: View topic - Show me your DIY Speakers ! That would make the rest of the cab a 'tuned' compression chamber where the higher freqs are filtered out by the length and folds of the transmission line prior to reaching the throat of the actual horn. Would raising the height of the 'throat' to the width of the line proceeding the throat and extending the length of the line to tune the frequency be more in line with the definition of a true horn? Or at least qualifying as a tapped horn? Still, I love the looks of this new cab. Looks like a fun build. Maybe some variation to accomodate the b20's could be in the works? Now would be the time and palce for that now that they are available on the cheap for expirementation.

27th August 2010, 07:31 AM	#7
Crossblade diyAudio Member Join Date: Jul 2006	I am sad that I do not need a pair, they look lovely!

27th August 2010, 08:42 AM	#8
yoshisoakland diyAudio Member Join Date: Feb 2010	Are the plans published already?