I've heard no other speaker or headphone that is as accurate as the current Stax Omega 2-007. If listening to classical or any accoustical instruments, voices on vinyl this is the way to go. I've heard most stax phones fed by Clearaudio/Ref Gold, and this version is in a different league. That is, if money is not a question, at $5K for headphone plus a used SRM-1T