I forgot one:   ATH-ANC27 -- Half-size too small. I'm selling them. The noise cancellation feature is cool, but for some reason they pick up a lot of electrical noise (on the wire) from my PC. The battery is also a deal-breaker. I'm certainly going to forget to turn them off at least twice a...

I'm having real trouble finding headphones that meet my requirements. I'm trying to use these for office work, keep the noise out, and keep the music in. I prefer a flat response, but I can always mix the levels myself in software.   Things I've tried:   sennheiser-hd-280-pro -- These...