That's kind of what I said in my post. The GRAMMA will definitely reduce bass rumble. Anything above the real low stuff, however, it doesn't do much. Actually, let me rephrase that. When you tighten up the bass by reducing the rumble, you can actually reduce the overall listening volume because the overall system sound becomes clearer. So, in a way, the GRAMMA can help with the rest of the sound also.

If you want some great acoustics info, try out the articles on this website.

www.realtraps.com

- good link Wayne -