Wanna know something interesting? try put the foam and filter from the Sony MH755 and aply them to the A8, then on top of the sony filter put the a8 filter as well. I'm pleased with these right now.

Just curiosity, anyone tried the Cardas 5813? how do they compare? Reason asking is because I read that they are not intended for portable use and honestly, I'm intrigued.

Your not alone, but I use them quite regularly... almost daily. These are the thibgs that I learned: 1. they are very tip dependant(experiment different tips, I heavily modded my SpinFits CP800 which are my dialy drivers) 2. They become more neutral as they burn-in/age. This is very...