Original CHP70 in dKal-El70 cabinets? - diyAudio
Go Back   Home > Forums > Loudspeakers > Full Range
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 9th March 2012, 09:10 AM   #1
Bister is offline Bister  Sweden
diyAudio Member
 
Join Date: Feb 2008
Location: Sundsvall
Default Original CHP70 in dKal-El70 cabinets?

Hello!
Iím building the dKal-El70 cabinets for a pair of Markaudio CHP70 Iíve ordered. I just realized the drivers are the first generation, not the CHP70.3. Is it possible to use these cabinets with some tweaks or should I use a different design?

Magnus
  Reply With Quote
Old 9th March 2012, 09:52 AM   #2
zman01 is offline zman01  Bangladesh
diyAudio Member
 
Join Date: Feb 2011
Location: Dhaka
Here's one for gen-1 CHP-70.

http://homepage.mac.com/tlinespeaker...lEL-191111.pdf
  Reply With Quote
Old 9th March 2012, 06:25 PM   #3
Bister is offline Bister  Sweden
diyAudio Member
 
Join Date: Feb 2008
Location: Sundsvall
Great, thanks! I couldn't find any reference to this design either at Planet 10 or here. Any thoughts on flipping the cabinet over? If possibe I'd like the driver on the long side with the speaker standing up.

Magnus
  Reply With Quote
Old 9th March 2012, 06:49 PM   #4
frugal-phile(tm)
diyAudio Moderator
 
planet10's Avatar
 
Join Date: Oct 2001
Location: Victoria, BC, NA, Sol III
Blog Entries: 5
Magnus,

Consider yourself lucky you found a pair of the old...

Which dKal-El70 cabs? The only freely released plans are the CGRs.

The original CHP is more akin to the EL70 and optimally requires a larger box than the CHP70.2 which is more like a CHR.

The smaller CGR could be retuned for the original driver, and if you haven't cut wood, i can get the free CGR plans for the original up fairly quickly.

The plans Zia linked too are the bigger box AFAIK (without checking). Driver can be placed on any face.

fonken-style box nomenclature... what is with those names?

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 9th March 2012, 08:40 PM   #5
Bister is offline Bister  Sweden
diyAudio Member
 
Join Date: Feb 2008
Location: Sundsvall
Yes, the plan was to build narrow CGRs. Would the larger box Zia linked to generate a better result? Putting the port on the front would put the inner end just 7 mm from the back wall. Is it ok to make a 90 degree turn in the port to make it follow the back wall the last distance?

I'm trying to understand these boxes. Can you change the dimensions (within limits), keeping the volume and the area of the cross section intact? For the port I guess it's the volume that matters?

Dave, I did cut the wood for the Kal-Els, but since this is my first build I used mdf figuring I wouldn't be out much if I messed up... which I did:-) I will happily make a small bonfire of the scraps in your honour;-)
Thanks for your help!

Magnus
  Reply With Quote
Old 10th April 2016, 05:18 PM   #6
slomatt is offline slomatt  United States
diyAudio Member
 
Join Date: May 2005
Location: San Francisco, CA
Sorry to revive such an old thread, but I have a pair of CSS EL70s and am also interested in trying the CGR dKal-El70 cabinets (specifically the slim design).

The design on frugal-phile.com is for the CHR70 drivers. Is there a version available for the EL70s?

http://frugal-phile.com/boxlib/P10fr...703-301113.pdf

Thanks.

- Matt
  Reply With Quote
Old 10th April 2016, 06:14 PM   #7
frugal-phile(tm)
diyAudio Moderator
 
planet10's Avatar
 
Join Date: Oct 2001
Location: Victoria, BC, NA, Sol III
Blog Entries: 5
Matt,

Note that the Kal-El cabinets are for the CHP-70s (2nd/3rd generation here).

For a miniOnken the EL70 optimally fits into 13L, the CHR into 9L. There is a 13L free CGR for the EL70 but i never put it into the smaller CGR … it will fit and work.

CGR Mar-Kel70 for EL70

If you would like the EL70 fitted into the smaller CGR i can do that, but it will require that you get the EL70 planset (now 39 pages (and missing at least 1 design done since), email me). I plan on adding the Pluvia Seven/CHS70 to this planset as its box requirements are VERY close to the EL70.

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 10th April 2016, 06:28 PM   #8
zman01 is offline zman01  Bangladesh
diyAudio Member
 
Join Date: Feb 2011
Location: Dhaka
I have a pair of EL-70 in Dave's CGR Mar-Kel design for which he has shared a link. The cabinet is the wide and shallow version. Very satisfying.

Also built a pair of slim CHR-Ken - again, a good design which works well with the CHR-70.2 which I used.
  Reply With Quote
Old 10th April 2016, 08:35 PM   #9
slomatt is offline slomatt  United States
diyAudio Member
 
Join Date: May 2005
Location: San Francisco, CA
Hi Dave,

Thank you for the amazingly fast response. In my post I accidentally typed CHR instead of CHP, I think my brain combined CHP and CGR somehow.

The EL70s came out of an open-baffle speaker I built a few years ago, and I'm looking for something else to try them in. My hope was to build a small set of speakers that could be used on my desk in an near-field arrangement, but the EL70 seems better matched to a slightly larger enclosure and might not be optimally used in a ~9L enclosure.

Hmmm.... perhaps instead I should put the EL70s into a Frugel-Horn Mk3 and buy some better suited drivers for the desktop speakers, something in the 3-3.5" range. I'll take a look at your designs with smaller enclosures. I'm sure my wife will be so happy that the large open-baffle speakers are gone that she won't notice they somehow turned into 4 smaller speakers.

Also, I wanted to thank you and everybody involved for releasing so many of these full-range designs either for free or for a reasonable price. If I had more free time I'd love to build the entire stable and try them all out.

- Matt
  Reply With Quote
Old 10th April 2016, 08:57 PM   #10
frugal-phile(tm)
diyAudio Moderator
 
planet10's Avatar
 
Join Date: Oct 2001
Location: Victoria, BC, NA, Sol III
Blog Entries: 5
EL70 fits comfortably in a millSize (4.7L vented) enclosure. They use a 49mm wide vent spacer in the standard millSize box (there is a mMar-Ken6 at frugal-phile.com)

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


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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
CHP70 in Bipole? andyjevans Full Range 3 12th September 2011 04:59 PM
el70 / chp70 with tripath 2024 ok? sayrum Full Range 38 29th August 2011 10:57 PM
el70 / chp70 with tripath 2024 ok? sayrum Full Range 0 26th August 2011 12:50 PM
Looking for Baltimore-DC Area carpenter to build EL70 MicroTower cabinets von Ah Full Range 70 18th July 2011 08:26 PM
Help with BR design for CHP70 mahleriana Full Range 24 24th March 2011 07:09 PM


New To Site? Need Help?

All times are GMT. The time now is 09:08 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2016 DragonByte Technologies Ltd.
Copyright ©1999-2016 diyAudio

Content Relevant URLs by vBSEO 3.3.2
Wiki