I'm finding that I can't find a good tip or sleeve to work on these yet. I've tried all of the ones that came with them along with some of the black Shure E2 soft flex sleeves. Those work a bit better, but I wanted to see if anyone has had success with other tips.

I'm new to amps and am interested in buying one but have very little knowledge outside of the posts I've read in this forum. The source is a Rio Karma and my current headphones are Shure e2c and K81DJs. I'm looking to spend ~$60 and was curious what would be a good match. I've heard a bit...