First off I want to thank Todd at TTVJ and Grado Labs for giving me the opportunity take part in this amazing loaner and review program.   While I have always had a natural curiosity about the higher end Grado headphone line I never really felt any sense of urgency to upgrade due to the fact I've always remained more than contented with my SR80i's, to the extent that i have often caught myself wondering 'come on,how much better can a headphone sound than this?!'  And as naive as that might sound I really felt it was a valid question at the time ...

review under construction