John Sayers' Recording Studio Design Forum Archive

Could this be working? Letting air out with a pipe to over the ceiling? I have a studio in an old bouthouse miles from neightbours.. Or am i messing up my soffits with a hole? Less bass? (wouldent hurt, cause mine(Meyer HD-2) have no reduction for soffit)
Help apreezeated!

PS for John: Hope that it's ok that i borrowe your drawing, and reworked it a little for the purpose... After all you rework ours all the time

If isolation isn't a problem, neither will that be - the main thing for soffits is that the front baffle extension should run in a flat plane away from the center of the woofer for at least 3-4 woofer diameters in each direction, preferably NOT EXACTLY the same distance in each direction (don't quite center the woofer in the large baffle) - making the baffles smaller than that, if the neighboring woodwork makes that area into a concave shape, can cause somewhat of a "horn" effect, narrowing the sweet spot a bit.

You can hear quite a bit of the benefit of soffiting by simply placing some cardboard panels around free-standing speakers with holes cut out for the speaker boxes, so your idea should be fine.

Remember though, that what goes out must come in; I'd look for an INPUT source of cooler air from below as well... Steve

Ok. So another pipe down to the hangers and the bass port will do?
Will this lower the bass? Spessialy the one to the roof?

Yes, it should; you'd be "bleeding off" pressure in the rear of the soffit, so I'd think that would reduce felt bass in the room. Only way to be sure though is to try it. You may also need to add a shelving equalizer to the monitor signal path to compensate the speakers for half-space mounting if they have no built-in switches... Steve

Thank you Steve.
I'll try and tell about the results.