Re: Any Auralex Gramma OR Great Gramma Users?....
I have a Gramma; use it with my iso cab. It really works wonders on bass overhang. A very wise purchase!
Can you explain bass overhang? Are you referring to too much bass when a speaker is close to the floor? If so, I've noticed this issue when recording and found that elevating, even inches, helps some. I'm betting half the improvement of this device is simply that it's further off the floor. Now, he started by saying it's intended for live locations atop a thin floor with an air space beneath it, which appears different than his demo location, so maybe it's a bigger help with that.
Isolation, which you hear about more with drum kits, should help much more. But true/complete isolation is nearly impossible to achieve, even with professional studios built on floors within floors. I'm guessing this product is a step closer to isolation, but there's now way it fully isolates.
I'm not in any way discounting this product, because I've never tried it. If it really helps more than just raising more off the floor, I'd consider it.
But, after a year of acoustic research while setting up my latest home studio (thanks to gear slutz), I found that most auralex products are overhyped, expensive foam.
Yes, I have used a lot of left over aurelex panels from my old home studio from 10 years ago, but they are doubled up and used only in the least important locations. 80% of the new studio is properly built and placed acoustic panels made of owens corning fiberglass panels. Did some decibal measurements with a "borrowed" radio shack meter and some software and it made a huge difference.
Of course, my studio intentions are more for mixing than sound isolation and are therefore different than what this product is supposed to do. But most acoustic engineers on gear slutz are pretty skeptical of aurelex products, and, for better or for worse, it has rubbed off on me.
