Yeah, I posted based on notes I?d transcribed years later from the build to the pics in the B-D book [can?t remember which earlier book that had these same drawings], but after posting I noticed that I?d misinterpreted them when I?d built it, so now I know another reason why it was tuned so low initially!Originally Posted by wws944
Oh well, I built it when I was thirteen, so with a testosterone saturated brain combined with being girl/hotrodding/racing ?crazy? it?s surprising it came out as well as it did.
Anyway, the drawing implies a 41? x 2-1/4? vent, but your close-up of the vent cover implies a shorter, narrower slot, I guess to allow plenty of fabric overlap, so what is it actually and are they the same for both cabs?
It seems reasonable to me that the little wood block is strictly for horn support even though they long since knew that it would act as a bit of a vent divider.
Good question. All the vented Altec cabs I?ve seen except the later THX cabs have been pretty lossy due to poor sealing, so vent selection takes a certain amount of production tolerance into account plus typical plush pile carpet doesn?t seal an open bottom very well either, so noticing that the cabs have little furniture ?buttons? on the bottom, I?d say try it both ways if practical to find which sounds best overall since either way it has some air leakage and the carpet will damp the port more than a reflective floor surface.
GM
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