Frugel-Horn XL for Alpair 10.3/10p - diyAudio
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Old 20th November 2013, 10:27 PM   #1
frugal-phile(tm)
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Default Frugel-Horn XL for Alpair 10.3/10p

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.

Click the image to open in full size.

*(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
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Old 20th November 2013, 11:22 PM   #2
chrisb is online now chrisb  Canada
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no pressure, Chris
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Old 21st November 2013, 04:08 AM   #3
mp9 is offline mp9  United States
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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?
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Old 21st November 2013, 04:13 AM   #4
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Quote:
Originally Posted by mp9 View Post
how far do they wanna live from the rear wall and corners?
We were using them 6-18" out.

dave
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Old 21st November 2013, 04:43 AM   #5
sippy is online now sippy  United Kingdom
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That's a fair chunk of speaker that is - I bet they are quite something irl.
Am building 'subwoofers' this year......
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Old 21st November 2013, 04:54 AM   #6
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Why is this thread not in the Planet10 Hifi or the Mark Audio forums?
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Old 21st November 2013, 05:12 AM   #7
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It is a Frugal-Horn.com design.

dave
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Old 21st November 2013, 08:56 AM   #8
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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).
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Old 21st November 2013, 09:32 AM   #9
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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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Old 21st November 2013, 09:39 AM   #10
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No, they're functional.
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