Chris J
Headphoneus Supremus
Would adding the FiiO E9 desktop app suffice? or do they need an even beefier amp? Sounds like the [COLOR=004660]O2+ODAC Combo [/color]
might be a good option but that's another 300 bones.
I have an E09K, for the money, it is a great amp for the 600 Ohm '880s