I have never used the total air/bithead but they do seem to get good reviews.

I do use a tube headphone amp that is most beneficial with headphones such as the Beyerdynamic DT880 (600 ohm) version. The 32 ohm version caters to the portable market smile .

P.S. You might want to search around to find better deals at places like Amazon for the headphones.

I’m armed and I’m drinking. You don’t want to listen to advice from me, amigo.

-Max Payne