HAPPY NEW YEAR !!
I have beyer's DY880 250 ohm HPs. I trying to get the best amp for it. I've researched a bit on the ones that are well reviewed.
Fostex HP-A4 (~$640), Maverick Audio D1 Plus, and some FiiOs. I've zeroed in on the Fostex's A4. Haven't checked out yet from ebay.
Also, is it worth upgrading to the T90 Tesla