Palmfish: My sister has had hearing aids her entire life, and will probably be completely deaf sometime later in life. So I'm semi-knowledgable about hearing aids-including the DSPs that all the digital ones have nowadays-whereas hey used to be primarily analog. A lot of hearing aids have numerous DSPs to choose from, each suited towards different things by default-and almost always programmable by the audiologist. I'd suggest telling him your exact situation with headphones-and see if there's a way he can get a DSP specifically for that use-that won't change/compress like the other DSPs used for everyday circumstances. Shouldn't be that difficult assuming he is willing to put forth a little effort-and not blatantly tell you to never listen to HPs again like I'm sure would be the common knee-jerk reaction by a lot of people...keep us updated!
Hey Daniel, want to let you know I am reconsidering selling my HD 800's. I visited the audiologist and had him tweak some settings on my "Music Program" and things are sounding better. He had to turn the feedback suppression up a couple notches to prevent the whistling feedback and I had him attenuate the highest frequencies a couple dB to tame the shrillness. The HD 800's are still a bit splashy on top but not as bad as they were. I also reinstalled my Anax mod foam/felt rings and things are sounding pretty good overall - still not what I would call "audiophile grade" sound, but now the HD 800's definitely are several notches better than the 558's. I get a sense of air and space with them again and a clarity and ease of effort with the 800's where the 558's sound closed in and cramped and darker. I'm at the point where the difference between them is big enough that I am doubting that the 600's will suffice.
I don't think I will ever eliminate the fuzz surrounding some high frequency sounds (its like a bit of scratchy hash straddling the pure tone) but overall, the 800's are at the point where the 558's don't satisfy. I'm going to keep tweaking and experimenting.
Thanks again for the encouragement.
Edited by palmfish - 12/18/13 at 7:33pm