In Reply to: RE: is 5/8" Baltic birch sufficient for RCA-Fan's 70Hz horn? posted by freddyi on September 15, 2015 at 14:43:25:
No holes, but connect it to the bottom.
We never used this box, but I was surprised how smooth and how high it went.
Of course the is zero directivity.
Let me know how you make out.
Bill
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Follow Ups
- bracing. horn.... - RCA-fan 16:45:30 09/15/15 (0)