Go Back   Home > Forums > > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Planet 10 hifi Home of the Frugal-phile™ - Planet 10 HiFi

Reply
 
Thread Tools Search this Thread
Old 13th May 2011, 07:11 PM   #21
lenconian is offline lenconian  Germany
diyAudio Member
 
Join Date: May 2011
Default Fonken for CHR 70

Hello to you all
I would really love to build a Fonken style cabinet with the CHR 70 as driver.
But I can't find any plans on that matter...

Could you kindly provide some instructions on how to implement ther CHR 70 into the Fonken?
Thanks so much guys
  Reply With Quote
Old 13th May 2011, 07:52 PM   #22
triode_al is offline triode_al  Netherlands
diyAudio Member
 
triode_al's Avatar
 
Join Date: May 2004
Location: Westland
Fonken is a code word for Fostex + Onken, as far as I know, or rather for some Feastrex + Onken.
Onken is the Japanese designer who used this concept a lot. His concept was popularized in the French magazine L'Audiophile, by the famous mr Jean Hiraga.

You can find how to calculate the vented box for ant LS, in this ONKEN CALCULATOR, by Cyr-Marc Debien.
It will give the vent length and width plus depth.
You enter the LS data.
Fine tuning is done with inserting some material in the vent (like felt).
easy isn't it?
albert
__________________
SPU --> tube MM/RIAA;
Pass buffer -->300B SE Anza´ Za´ka; --> FE103 sigma TQWT
  Reply With Quote
Old 13th May 2011, 07:53 PM   #23
doorman is offline doorman  Canada
diyAudio Member
 
doorman's Avatar
 
Join Date: Jul 2003
Location: Vancouver Isl. B.C.
lenconian:
These: IMG_1394.jpg are using MA ChR-70's.
Contact Dave @ planet_10 hifi
don
  Reply With Quote
Old 13th May 2011, 08:48 PM   #24
planet10 is online now planet10  Canada
frugal-phile(tm)
diyAudio Moderator
 
planet10's Avatar
 
Join Date: Oct 2001
Location: Victoria, BC, NA, Sol III
fonken-style box nomenclature... what is with those names?
Quote:
Originally Posted by triode_al View Post
Fonken is a code word for Fostex + Onken
The Fonkens only borrow the configuration of the side slots from the Onken. The tuning is quite different.

lenconian, the box you want is the CHR-Ken (pronounced the same as the sea monster). The plans are not free (althou they come as part of a purchase of P10 drivers), you have mail with the details.

Attached is a snap-shot the title page of the current plan-set to give an idea of how comprehensive the document is.

dave
Attached Images
File Type: gif dMar-Ken-title070311.gif (83.4 KB, 925 views)
__________________
community sites t-linespeakers.org, frugal-horn.com, frugal-phile.com ........ commercial site planet10-HiFi
p10-hifi forum here at diyA
  Reply With Quote
Old 13th May 2011, 09:07 PM   #25
planet10 is online now planet10  Canada
frugal-phile(tm)
diyAudio Moderator
 
planet10's Avatar
 
Join Date: Oct 2001
Location: Victoria, BC, NA, Sol III
fonken-style box nomenclature... what is with those names?
A picture of our CHR-Ken @ VI diyFest 2010

Click the image to open in full size.

dave
__________________
community sites t-linespeakers.org, frugal-horn.com, frugal-phile.com ........ commercial site planet10-HiFi
p10-hifi forum here at diyA
  Reply With Quote
Old 13th May 2011, 09:55 PM   #26
lenconian is offline lenconian  Germany
diyAudio Member
 
Join Date: May 2011
Thank you very much guys
CHR Ken is a great name

and it's a great speaker so I can fully understand you charging a minor charge for it. I mean your actually giving it away for free when the speakers are ordered from you. That's a great service
  Reply With Quote
Old 13th May 2011, 11:22 PM   #27
buzzforb is offline buzzforb  United States
diyAudio Member
 
buzzforb's Avatar
 
Join Date: Oct 2010
Location: Burlington, NC
Dave,
Are the microFonkens the smallest form factor you have. I would like to try the new CHR or an EL for monitor speakers.
  Reply With Quote
Old 14th May 2011, 01:31 AM   #28
planet10 is online now planet10  Canada
frugal-phile(tm)
diyAudio Moderator
 
planet10's Avatar
 
Join Date: Oct 2001
Location: Victoria, BC, NA, Sol III
fonken-style box nomenclature... what is with those names?
There is a wider, shallow variation on the concept with a 1.5 litre base (instead of 2 litre in the uFonken), but it has more vent so end volume is liely similar.

There is a 2.5 litre base one for the A6.2 (either one), but you really need to go to the milliSize for the EL70 or CHR.

dave
__________________
community sites t-linespeakers.org, frugal-horn.com, frugal-phile.com ........ commercial site planet10-HiFi
p10-hifi forum here at diyA
  Reply With Quote
Old 14th May 2011, 03:38 AM   #29
buzzforb is offline buzzforb  United States
diyAudio Member
 
buzzforb's Avatar
 
Join Date: Oct 2010
Location: Burlington, NC
Would againclone be a good amp for it. Looking for small and simple but still sounds good.
  Reply With Quote
Old 14th May 2011, 04:10 AM   #30
planet10 is online now planet10  Canada
frugal-phile(tm)
diyAudio Moderator
 
planet10's Avatar
 
Join Date: Oct 2001
Location: Victoria, BC, NA, Sol III
fonken-style box nomenclature... what is with those names?
The EL70 & the CHR should both be happy with a gaineclone. I had the proto mMar-Kel in my office (i have a rotation of milliSize) forever with ah "1875" gainclone. Sounds good.

dave
__________________
community sites t-linespeakers.org, frugal-horn.com, frugal-phile.com ........ commercial site planet10-HiFi
p10-hifi forum here at diyA
  Reply With Quote

Reply


fonken-style box nomenclature... what is with those names?Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Surround style dipole : simulating box and expected SPL ? jm_kzo Multi-Way 3 2nd June 2008 07:25 PM
FR125S playing in temp BR box, MacGyver style! Alcaid Full Range 25 17th September 2005 09:09 PM
Interstage Transformer Nomenclature TerribleT Tubes / Valves 20 16th January 2005 10:04 PM
Vademecum nomenclature pmkap Tubes / Valves 3 27th August 2002 11:16 PM


New To Site? Need Help?

All times are GMT. The time now is 12:41 AM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 14.29%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright ©1999-2017 diyAudio
Wiki