The Blue Hawaii is for electrostatic headphones only!
HeadAmp Blue Hawaii HP amp
I know this Amp is excellent for powering the Stax headphones. Can the Blue Hawaii also power other headphones that have XLR connectors? I am thinking of purchasing the Stax SR-007 or 009 in the future but in the meantime would the Blue Hawaii power my Hifiman HE-6 and Sennheiser HD-650? And if yes would it power them well or poorly (too powerful of an amp for the headphones)?