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Old 1st October 2009, 12:08 AM   #6221
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Default Fonken

Hi,

Guess the F in Fonken stands for Fostex and Onken stands for errrr...Onken type of horn loading cabinet?

I've heard similar speakers way back when using Lowther units mostly.
They can't do everything but what they can handle they do so extremely well.

@Andre Visser: I know Mogami cables for more than 25 years. They're good but there's better out there.

Cheers,
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Old 1st October 2009, 12:17 AM   #6222
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Quote:
Originally Posted by BudP View Post

I had no idea they could play at this level, they never get above 80 dB in my living room, and usually much quieter than that, so I was not prepared for what they delivered.
I had a similar experience... took Fonkens to an event in Vancouver. Driven by a pair of 25 W class A monobloks (actually 1 channel each of a pair of stereo amps), the Fonken played way louder than i thot possible (and not a small room). I actually went up between songs to check to make sure that the edges of the dustcap at the voice coil was not getting hot to the touch.

I don't yet have any amps here that will do that (even with more power)

dave
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Old 1st October 2009, 12:27 AM   #6223
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Quote:
Originally Posted by planet10 View Post
I had a similar experience... took Fonkens to an event in Vancouver. Driven by a pair of 25 W class A monobloks (actually 1 channel each of a pair of stereo amps), the Fonken played way louder than i thot possible (and not a small room). I actually went up between songs to check to make sure that the edges of the dustcap at the voice coil was not getting hot to the touch.

I don't yet have any amps here that will do that (even with more power)

dave
Time to build Mini A's
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Old 1st October 2009, 12:29 AM   #6224
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Quote:
Originally Posted by fdegrove View Post

Guess the F in Fonken stands for Fostex and Onken stands for errrr...Onken type of horn loading cabinet?
Exactly Frank. First cut was a "miniOnken" for the CSS FR125. Then when i put an FE127 in a similar box, Chris came up with Fostexonken. The concepts have been so fertile new names are becoming a stretch and the orginal is now officially FonkenPrime. A conflence of ideas from over 30 years coming together into something special.

Not horn loading, but resistance added to the ports because of length and severe aspect ratio of the slot ports. Reduces the effects of changing T/S paramets with level, and the construction itself aid in making a box where it is hard to excite inherent box resonances (making them defacto non-resonant)

Click the image to open in full size.

dave

(sorry if that reads like a little ad, but i am quite proud of how this design turned out -- it is the heart of a bi-amped 3-way in my main system, in Chris's room they are enuff by themselves)
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Old 1st October 2009, 12:33 AM   #6225
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Time to build Mini A's
Hey Jase, nice to see you hanging around... miniA didn't make the cut. F2, F4 in the queue. And i early await the return of Gregg's revised dynaMutt

dave
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Old 1st October 2009, 12:36 AM   #6226
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Originally Posted by planet10 View Post
Hey Jase, nice to see you hanging around... miniA didn't make the cut. F2, F4 in the queue. And i early await the return of Gregg's revised dynaMutt

dave
Thanks, hanging around lots, reading some, hoping to start some projects for winter.

Work has me busy, ( a good thing ) so i might have some $$ for projects for winter, other than car stuff.
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Old 1st October 2009, 12:41 AM   #6227
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Hi,

@Planet10: I'm mightily impressed just by looking at it.

Cheers,
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Old 1st October 2009, 12:52 AM   #6228
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Here, i should have given you the link to more info, pictures, plans & some of the spin-offs.

http://www.planet10-hifi.com/fonken.html

dave
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Old 1st October 2009, 02:03 AM   #6229
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Default Maybe time to spin off to a new thread

Quote:
I have some transformers for laying around here somewhere :-)
If they're successful, may I have a pair of their offspring?

Seriously, though, all of the good stuff people say about small fullrange speakers is true, but (and this is a big but - not Olivia Munns big, but big nonetheless), a driver with a Vas of only 10 liters is simply not going to move enough air to accurately reproduce the weight and sonority of piano notes 250Hz and down. And it's not just when low notes are being struck - for a piano to sound realistic when any part of the keyboard is being played, the lower end of the register cannot be allowed to come off as sounding thin.

John

Last edited by jlsem; 1st October 2009 at 02:07 AM. Reason: The same old dumb mistakes...
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Old 1st October 2009, 02:19 AM   #6230
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Hi,

The thing about "small full range" speakers is that they're not really full range and being small they do have their limitations in that department as well.

Ideally they should be bigger and more full range but that will in turn lose some of the magic.

Can't have that cake and eat it too...

Maybe a D'Appolito set up may change a few probs at either end, who knows.

Were way off topic as it is already.

Off to bed I am and thx Dave for the link BTW.

Cheers,
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