[OceanEnthusiast]

FWIW, I've been using the Antique Sound Lab MG-Head OTL Mark III tube amp with my senns (580 and now 650). I like the combo.

http://www.divertech.com/aslmgheaddt.html

 

[donunus]

By the way, has anyone heard hd650s with a meier headfive? How does it sound?