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Grateful Dead Music Forum

A place to talk about the music of the Grateful Dead 

Chat about Equipment Info
 #120336  by Rusty the Scoob
 Wed Oct 31, 2012 10:46 am
So another forum member has a 1x12" closed-back cab that he'd like me to convert to open-backed, to hold one K120. I'm thinking: why not cut the hole in the shape of a lightning bolt with a jigsaw? Would that allow enough air to pass?
 #120340  by JonnyBoy
 Wed Oct 31, 2012 11:15 am
Rusty the Scoob wrote:So another forum member has a 1x12" closed-back cab that he'd like me to convert to open-backed, to hold one K120. I'm thinking: why not cut the hole in the shape of a lightning bolt with a jigsaw? Would that allow enough air to pass?


Actually every little bit you leave has an effect, i think. I had a cross cut out on the back, not for religious reasons, but for support/a place to mount a jack plate, that really wasn't needed after all. It had about 2/3 of the back opened. It sounded better when I got rid of it (totally open), not huge of a difference, but some. YMMV. I have no idea how geometry and physics affect tone in this circumstance. It may have been how I had the back opened. I would make it kinda big?