Experimented a little with augmenting the existing damping on the inside of the cups. I don't have any dynamat type stuff but I had this thin, dense foam lying around... I think it was packing material for something important, can't really remember where it came from. Seems appropriate for cheap headphones. It's .10" thick. I cut it to fit and used double side tape to stick it in place like so:
The effect... eh, I'm no audiophile and not attempting to be even the slightest bit scientific about this so take this with a grain of salt. The low bass notes seem to have a little more oomph. The rest still sounds good... to me at least. The foam eats up a bit of the airspace in there and I'm not sure how that is expected to effect the frequency response but I think I like it with the foam and will leave it in for now.
Well I don't know what happened but this morning I had another listen and thought it sounded like crap. Yanked out the foam I added and it's back to normal. I assume I was just tired and crazy last night.
Edited by zhyla - 3/9/13 at 10:01am