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-   -   My CHR-70 build (http://www.diyaudio.com/forums/markaudio/231205-my-chr-70-build.html)

SirByrd 2nd March 2013 10:52 PM

My CHR-70 build
 
Whipped up 6 pairs of these:
http://i64.photobucket.com/albums/h1...d/KT138P-1.jpg
https://sphotos-b.xx.fbcdn.net/hphot...12431749_n.jpg
https://sphotos-b.xx.fbcdn.net/hphot...93042947_n.jpg
https://sphotos-a.xx.fbcdn.net/hphot...05907630_n.jpg
https://sphotos-b.xx.fbcdn.net/hphot...40720675_n.jpg
https://sphotos-a.xx.fbcdn.net/hphot...28470489_n.jpg

SirByrd 2nd March 2013 10:53 PM

Not without damaging one of the drivers:
https://sphotos-b.xx.fbcdn.net/hphot...62779670_n.jpg
And the solution to that problem.
https://sphotos-a.xx.fbcdn.net/hphot...95002240_n.jpg

SirByrd 2nd March 2013 10:54 PM

Each one is made out of 1/2" bamboo plywood. Internal volume is 13.8 liters. Tuned to ~47Hz with a 1" diameter by 1.1" long port.

F3 is simulated to be 40Hz and I believe it. Haven't measured it yet though.

The baffle is relatively wide to reduce the effects of baffle step. There is no BSC or any filters in this speaker.
Just 10" of supra ~16 gauge wire between them at the terminals on the back.

Internal dimensions are all golden ratio.

eladmi 3rd March 2013 02:53 AM

Butiful build. Awesome work.

Cheers

SirByrd 3rd March 2013 02:56 AM

Thanks!

wcwc 3rd March 2013 04:37 AM

Why do you need 6 pair?

SirByrd 3rd March 2013 04:41 AM

Made some for friends

zman01 3rd March 2013 06:40 AM

Beautiful work SirByrd. Lucky friends. :)

SirByrd 3rd March 2013 05:42 PM

Thanks!

osscar 3rd March 2013 05:43 PM

i like them too! very good work !


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