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Old 29th July 2009, 04:31 AM   #1
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Default rFonken -- Success & Failure

After seeing & touching the PE curved Parts Express cabinets we thot we'd explore the idea of a flat-pak baffle assembly that turned the 1/2 ft^3 (14 litre) PE cabinet into a member of the Fonken family.

The PE cabinet is quite good. Top, bottom, & back are all quite small. Sides are a plywood made of a laminate of 6 layers of MDF. Sides, top & bottom are braced. The weak point is the MDF baffle. They are well finished and come in a variety of flavours (black, cherry, maple). The one down-side is that the MDF is somewhat "soft" and it is not all that hard to damage the edges (pictures later).

We devised and built up a baffle & installed them into a set of cherry finished PE cabinets.

The Success: they work really well. Not quite the finese of a set of FonkenPrime but close.

The Failure: turns out it is almost as hard to build these as it is to build a full set of FonkenPrime. Also a problem was the dimensional consistancy of the 2 pair of PE cabs we have was not all that good. So we had to abandon the idea of flat-pak baffles.

The Upside: someone can have the R&D mules REALLY cheap (see the Swap Meet)

Full plans are here http://p10hifi.net/tlinespeakers/FAL...map-290709.pdf (not there as i write this, i need to run them thru acrobat)

dave
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Old 29th July 2009, 04:33 AM   #2
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A visualization of the baffle assembly
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Old 29th July 2009, 04:34 AM   #3
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pictures of the realization.
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Old 29th July 2009, 04:36 AM   #4
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A couple more pictures.
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Old 29th July 2009, 04:36 AM   #5
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another
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Old 29th July 2009, 04:38 AM   #6
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The SketchUp of the baffle
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Old 29th July 2009, 05:09 AM   #7
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They look good, Dave!

Quote:
The Failure: turns out it is almost as hard to build these as it is to build a full set of FonkenPrime. Also a problem was the dimensional consistancy of the 2 pair of PE cabs we have was not all that good. So we had to abandon the idea of flat-pak baffles.
You'll probably find as I did, also at least twice as expensive cost wise going the PE route

Cheers!
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Old 30th July 2009, 08:21 AM   #8
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Sorry for the delay... i finally got the plans in place so thatthe link in post 1 works.

dave
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Old 31st July 2009, 03:51 PM   #9
Bigun is offline Bigun  Canada
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Very interesting.

I have to admit, I prefer the look of your FonkenPrime though.

You didn't mention any disadvantage from not having the bevelled edges compared with the FonkenPrime ?
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Old 31st July 2009, 05:17 PM   #10
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Quote:
Originally posted by Bigun
You didn't mention any disadvantage from not having the bevelled edges compared with the FonkenPrime ?
We are pretty sure that is one of the reasons the FonkenPrime has a bit more finese (ie downward dynamic range)

dave
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