Frugel-Horn XL for Alpair 10.3/10p, Fostex FF165wk, more

planet10 · 20th November 2013, 11:27 PM

We showed the 1st prototypes of the Frugel-Horn XL for the Alpair 10.3/Alpair 10p* at this summer's VI diyFEST. Subsequently Mark heard them when he stopped by at the end of his recent visit to Canada.

*(will wotk with older A10 but is less optimal)

All-in-all we ar every pleased with the results and it is time to get the plans ready for release.

Unlike the original Frugel-Horn and the Frugel-Horn Mk3 there will be a charge for the planset. We are proposing a minimum $10 donation to the forum in exchange for the plans.

But before that we need a couple or 3 beta builds to help hammer the planset into shape... it is currently just a plan view.

If you are interested -- they need to be built fairly soon -- send me an email.

Attached is a plan with the extents noted, these are a fair bit larger than the FH3, make sure they will fit.

Chris is just finishing up the finish on our prototypes, i willpost pictures as soon as i can.

dave

edit (22-aug-16): How to get detailed plans

chrisb · 21st November 2013, 12:22 AM

no pressure, Chris

mp9 · 21st November 2013, 05:08 AM

Interesting proposition.

The ~ 9.4" x 21.3" footprint will take up some real-estate, how far do they wanna live from the rear wall and corners?

planet10 · 21st November 2013, 05:13 AM

Quote:

Originally Posted by mp9

how far do they wanna live from the rear wall and corners?

We were using them 6-18" out.

dave

sippy · 21st November 2013, 05:43 AM

That's a fair chunk of speaker that is - I bet they are quite something irl.
Am building 'subwoofers' this year......

ra7 · 21st November 2013, 05:54 AM

Why is this thread not in the Planet10 Hifi or the Mark Audio forums?

planet10 · 21st November 2013, 06:12 AM

It is a Frugal-Horn.com design.

dave

Scottmoose · 21st November 2013, 09:56 AM

No pressure at all Chris.

It's not a small speaker, but with that said, the overall dimensional increase over FH3 actually isn't vast. To pre-empt some queries, like FH3, they're intended for boundary loading for optimal performance, so you don't need to have it way out into the room. It's essentially an extension of the FH3 alignment & the internal choke primarily serves as a low-pass filter. As Dave notes, the 10.2 & original 10 will work, albeit not quite as well as the design units. Any other drivers will have to wait until after it's gone through beta, so please don't ask at this time; we'll simply quote this sentence.

They should be good for a conservative open E double bass (~42Hz).

paul burchell · 21st November 2013, 10:32 AM

Are the curved side panels strictly cosmetic in the fh design or do they have a function other than extra stability

Scottmoose · 21st November 2013, 10:39 AM

No, they're functional.

21st November 2013, 12:22 AM	#2
chrisb diyAudio Member Join Date: Aug 2002 Location: victoria BC	no pressure, Chris __________________ It’s been a slice kids

21st November 2013, 06:12 AM	#7
planet10 frugal-phile(tm) diyAudio Moderator Join Date: Oct 2001 Location: Victoria, BC, NA, Sol III	It is a Frugal-Horn.com design. dave __________________ Stay safe. Stay home. Respect the 2m bubble.

21st November 2013, 09:56 AM	#8
Scottmoose diyAudio Member Join Date: Mar 2005 Location: UK	No pressure at all Chris. It's not a small speaker, but with that said, the overall dimensional increase over FH3 actually isn't vast. To pre-empt some queries, like FH3, they're intended for boundary loading for optimal performance, so you don't need to have it way out into the room. It's essentially an extension of the FH3 alignment & the internal choke primarily serves as a low-pass filter. As Dave notes, the 10.2 & original 10 will work, albeit not quite as well as the design units. Any other drivers will have to wait until after it's gone through beta, so please don't ask at this time; we'll simply quote this sentence. They should be good for a conservative open E double bass (~42Hz). __________________ www.wodendesign.com (commercial site) www.frugal-horn.com www.frugal-phile.com (community sites)

21st November 2013, 10:39 AM	#10
Scottmoose diyAudio Member Join Date: Mar 2005 Location: UK	No, they're functional. __________________ www.wodendesign.com (commercial site) www.frugal-horn.com www.frugal-phile.com (community sites)

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21st November 2013, 05:08 AM	#3
mp9 diyAudio Member Join Date: Jun 2006	Interesting proposition. The ~ 9.4" x 21.3" footprint will take up some real-estate, how far do they wanna live from the rear wall and corners?

21st November 2013, 05:43 AM	#5
sippy diyAudio Member Join Date: Jun 2008	That's a fair chunk of speaker that is - I bet they are quite something irl. Am building 'subwoofers' this year......

21st November 2013, 05:54 AM	#6
ra7 diyAudio Member Join Date: Feb 2009 Location: Davis, CA	Why is this thread not in the Planet10 Hifi or the Mark Audio forums?

21st November 2013, 10:32 AM	#9
paul burchell diyAudio Member Join Date: May 2011 Location: nova scotia	Are the curved side panels strictly cosmetic in the fh design or do they have a function other than extra stability

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