Electronics > Projects, Designs, and Technical Stuff
Speaker cabinet (guitar) - Air tightness & other stuff
SiliconWizard:
--- Quote from: TinkeringSteve on September 19, 2019, 10:00:02 pm ---It looks like there is a slit that could work as a vent there behind the cloth, between those 2 wooden parts of the front. No idea whether that's deliberate, and whether the 1x12" has some extra vent somewhere (having only 1 front plate, presumably), that would indeed be interesting.
--- End quote ---
It's hard to see in the video. What can be seen though, is that there doesn't seem to be any special sealing. Just glue, nails and screws. Pretty basic construction. No way it could be perfectly air tight, at least from what we can see on the video. As to slits, it's really hard to see. But there seems to be one indeed. They show a lot while showing very little. That's the art of filming production without unveiling fabrication secrets. Although again, there frankly doesn't seem to be anything very special here.
viperidae:
I wouldn't try to make it 100% air tight. You don't want pressure to build up inside when the temperature rises.
themadhippy:
--- Quote ---As to slits, it's really hard to see. But there seems to be one indeed
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Its not for tuning,just a left over from making the angled baffle for the top 2 drivers
TinkeringSteve:
Ok, then I guess I'll try how it sounds without any foamy stuff, and if I hear air hissing through somewhere, I'll try to make changes so that it won't do that, but the air escapes less squeezed.
Say, what is the benefit of some guitar cabs to have only the center 1/3 of the height of the back open?
I.e. upper 1/3 of the back has wood, lower 1/3, but the center 1/3 is missing.
I at first though it might be a compromize, achieving the prevention of waves to the front cancelling with those emitted at the back with less "depth" of the cabinet (front to back measurement), but... the left and right sides are still as "open" (although the whole things is somewhat wider than it is high, hrm...)
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