Quote:
Originally Posted by Mr. Dreq  It has been mentionted there should be holes on the top and bottom of the frame. How big should they be and where should they be placed? Should there be holes on the sides also?. |
It's not quite as scientific as that. The idea is to expose as much of the rockwool/fibreglass to the surroundings as possible. So you need as many big holes as you can without weakening the structure of the panel.
There was some traps pictured on GS recently which had loads of 2" holes drilled in the sides/top/bottom, or check out the realtraps ones. This should give you the general idea.
my insprirations for DIY basstrap builders