Anybody used Sonic Barrier ?

[pm]

Looking for feedback for this product. How is it ?
If anybody used then what were your impressions of this product ?

[cjd]

> If anybody used then what were your
> impressions of this product ?

The stuff that's just foam is that - foam. Mild improvement in resonance, probably mostly helps with reflections (but I really don't know if it does that well or not).

The multi-layer stuff definitely reduces box wall resonance, at least based on my oh-so-accurate knuckle rap test. Also makes a HUGE difference on the "stick yer head in and hum" - really deadened the inside. And that's with only partial wall coverage.

All in all, good stuff.

C

[pm]

I was referring to the multi layer one and it sounds like it might work!
I want to use in the car for a dual purpose. I am thinking the foam will help absorb reflections and resonances resulting from the driver and the vinyl backing will act as a panel damping material, which is typically used for auto door panel damping.

Thanks!

> The stuff that's just foam is that - foam.
> Mild improvement in resonance, probably
> mostly helps with reflections (but I really
> don't know if it does that well or not).

> The multi-layer stuff definitely reduces box
> wall resonance, at least based on my
> oh-so-accurate knuckle rap test. Also
> makes a HUGE difference on the "stick
> yer head in and hum" - really deadened
> the inside. And that's with only partial
> wall coverage.

> All in all, good stuff.

> C