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Old 9th September 2009, 01:25 PM   #1
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Join Date: Feb 2005
Location: S.England
Default DIY Desktop Speakers Suggestions

Hello,

Are there any DIY desktop speaker designs buried in here anywhere? Say 10W. Something to replace those crappy speakers one usually gets with a PC (computer)?

Cheers,

Andy
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Old 9th September 2009, 02:35 PM   #2
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Absolutely! Check out the micro-Fonken! Dave at Planet 10 has a real winner here. The enclosure is great, and the FF85k is a very special driver. You may want to use it for more than just computer speakers.

http://www.planet10-hifi.com/fonken.html
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Old 9th September 2009, 02:58 PM   #3
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Thanks!

Man they look cool. Defo gunna try to knock some of those up. Glad I'm better at my woodwork than my knowledge of audio hifi elelctronics.

Q) where to get the those speakers from. are they Fostex FE103's? Where can I get my mitts on some of those in the UK or something equivalent etc.

Thanks again!

Andy
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Old 9th September 2009, 03:29 PM   #4
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Cool Desk top -well, ...SIDE.

I use Zigmahornets for desk use. Lovely imagery.
See Merrill Zigmahornets, on 6 Moons site.






Mine are Polystyrene.....
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Old 9th September 2009, 04:01 PM   #5
amiklos is offline amiklos  United States
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Another vote for the micro-fonken. I'm using a pair and really like them. Took less than an hour for all the cuts, half a day for assembly letting the glue set for 30-45min at each joint, and I cheaped out and just sanded them down and applied some stain and clear coat.

A crappy pic of them sitting on top of some other bookshelf speakers.

Click the image to open in full size.
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Old 9th September 2009, 04:10 PM   #6
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don't know here..
if you're searching for more economical solutions,
in our little italian forum
recently 2-3 users presented their works, with Tangband w3-871s and/or HiVi B3N
http://t-class.niceboard.net/diy-hif...tiva-t3135.htm (taken from http://www.webalice.it/loziopino1/Sito/Home.html)
http://t-class.niceboard.net/autocos...-chf-t2726.htm (taken from http://www.audiomaxitalia.com/filead...otti/micro.pdf )
both of them are based on precedent projects, presented on magazines or internet..
i've also listened to these :
http://hxos.altervista.org/u-B3N.html
(presented also in http://www.audiocostruzioni.com/ search for diy speakers, full-range section) good nearfield sound, big value4money..
it's all in italian, but i think you can give a try, they're full of links and images...
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Old 9th September 2009, 04:44 PM   #7
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Here is a 1st impression from scottmoose on the uFonken i sent him:

http://www.diyaudio.com/forums/blogs/planet10/26-04-sep-09-ufonkens-arrive-uk.html

dave
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Old 9th September 2009, 06:05 PM   #8
chrisb is offline chrisb  Canada
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I took some time off other projects to spend a few hours this past Sunday on a listening session with Jeff (VinylKid), and a couple more yesterday evening solo.(wait, that sounds a bit wrong)

With a total of 3 Mark Audio and 2 Fostex enclosures, and 4 different tube and 1 class T SS amp to choose from*, things can get very confusing, or very revelatory (as when things just gel) .

For me the latter was the case.

We've used the FF85K in 3 basic configurations; small OB, "Tysen" 2-way with powered woofers (PLLXO at approx 330Hz), and the microFonkens. This little driver is quite amazing, and even with the severe headroom limits of a pair of 2A3 SE (i.e. well under 4w), and lack of any servicable low end, the dynamics/textures/ imaging and soundstage has more than a few folks shaking their heads.

* equipment list for the session

speakers:
Mark Audio Alpair 5 (stock)/ mini TL
Mark Audio Alpair 6 (stock) 5L slot ported
Mark Audio/CSS EL70 (EnAbled) castle top dual driver (i.e. not "really" a bipole?) microtower
Fostex FE167En - 24L floor Fonken
Fostex FF85Ken - 2L microFonken

amps:
Bottlehead Paramour 2A3 (choke filtered/film cap power supply)
George Wright Mono7 300B
DIY EL84 class A PP triode ("El Cheapo" clone)
Jolida SJ302 EL34 triode wired PP
Kingrex T20U class T

source:
Jolida CD player

The microtowers do a great job of filling a 320 sq ft room and can certainly surpass the SOA of FF85K, but for a small desk top/ computer monitor the latter driver in the 2L slot ported box is a great choice.

Yes, we did try stock round ported variations of smaller boxes with earlier variants of the "fonken family", and definitely found the high aspect ratio slot ports gave more control and smoother extension from the mid-bass down. Of course, with the FF85K, the mid-bass is about as far as you'll safely get when running full range, even with EQ, but add a separate powered woofer and it's a whole new game.
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Old 9th September 2009, 06:37 PM   #9
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Americano's & Canadians abound! Great speaker design guys, shame about the Fostex Drivers in as much as where can I get my paws on some without spending a FORTUNE as I live in the UK (as my flag would suggest).

I see that speaker design and think oooooo, and then I try to source Fostex drivers and think arrrrrggggggggghhh.

Andy
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Old 9th September 2009, 07:35 PM   #10
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Hello Chrisb,

I'm curious to know how those alpairs you listened to compared to the fonken. Was the A5 in Henkjan's desktop TL? Did your impressions match those of others I've read, i.e. the alpairs are more neutral but the fostex still have a special magic?
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