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SirByrd 2nd March 2013 09:52 PM

My CHR-70 build
Whipped up 6 pairs of these:

SirByrd 2nd March 2013 09:53 PM

Not without damaging one of the drivers:
And the solution to that problem.

SirByrd 2nd March 2013 09:54 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 01:53 AM

Butiful build. Awesome work.


SirByrd 3rd March 2013 01:56 AM


wcwc 3rd March 2013 03:37 AM

Why do you need 6 pair?

SirByrd 3rd March 2013 03:41 AM

Made some for friends

zman01 3rd March 2013 05:40 AM

Beautiful work SirByrd. Lucky friends. :)

SirByrd 3rd March 2013 04:42 PM


osscar 3rd March 2013 04:43 PM

i like them too! very good work !

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