I have noticed some foam surrounds on speakers. A lot of them subs. I just ordered a pair of these GRS 12" woofers for a project.
Is the surround like a tweeter surround where it absorbs some unwanted high frequency tones? Or is it for mounting on the inside of the baffle? If it is the latter, I just might do that.
Oh yeah, and here's some picture of my future off coffee table. I'll build it sometime next week. Push push. They are locked by M5 threaded rod and it is all braced to hell. Probably going to do all these window braces by hand. Anyways, should hit to 18 hz flat as a pancake. No vibration for office visitors setting their coffee on the table. It will have a clear acrylic top so you can see inside. Found a giant sheet of 1/2" acrylic for free so why not?
FYI, I posted in this forum rather than the sub one because a) I don't know any of those people and b) I'm pretty sure this lot knows more than them
Is the surround like a tweeter surround where it absorbs some unwanted high frequency tones? Or is it for mounting on the inside of the baffle? If it is the latter, I just might do that.
Oh yeah, and here's some picture of my future off coffee table. I'll build it sometime next week. Push push. They are locked by M5 threaded rod and it is all braced to hell. Probably going to do all these window braces by hand. Anyways, should hit to 18 hz flat as a pancake. No vibration for office visitors setting their coffee on the table. It will have a clear acrylic top so you can see inside. Found a giant sheet of 1/2" acrylic for free so why not?
FYI, I posted in this forum rather than the sub one because a) I don't know any of those people and b) I'm pretty sure this lot knows more than them
Attachments
It is a speaker mounting gasket, that serves that function yes, also for aesthetics when front mounted.
They come in foam, or cork or other plastics usually.
It can/will to some degree decouple the driver from the baffle also depending on material/thickness/compression etc.
You will see some have a trim ring instead for aesthetics, and front mounting.
Back mounting will have diffraction effects, but at the intended use/frequencies i guess it is not a concern.
A foam surround indicates you meaning the cones surround / suspension, which is in rubber in your picture.
Got it.
Ok, I will mount them on the inside of the baffle then. That makes it a bit cleaner looking.
And those gaskets adhere to and hide the glue bead that squeezes out from the surround.
And if they leak you will hear it. They form part of the acoustic suspension of the cone.
Good point. Since this build has the removal acrylic panel I don't see it as an issue.
I am going to screw the acrylic down with countersink screws I think.