I record electric guitar in a small (12x10) room with no acoustic treatment to speak of. The walls are 20s era plaster and the floor is hardwood with joists.

I get a noticeable amount of "muddy" bass transmission through the floors and walls when I play, though I am not sure how much of it ends up being picked up by the microphones when I record. I don't mind the effect when I play/practice, but am wondering if I could increase the clarity of my recorded parts by isolating the guitar cabinet from the floor.

I also annoy my neighbor from time to time, and most of the sound that reaches their house is low-mid frequencies transmitted through the wall.

Questions - Would a product like the Auralex GRAMMA 1) markedly increase the clarity of recorded guitar parts or 2) markedly reduce the transmission of low and low-mid frequencies to the exterior of the house via the walls?

If effective, could a comparable object be built easily for less than $50?

Here's a link to the product info.

http://www.auralex.com/sound_isolation_ ... gramma.asp