Sennheiser HD 530, Sennheiser HD 560, Sennheiser HD 448
Headphone Amp Inventory:
Purity Audio K.I.C.A.S. (Regular not Caliente), Onkyo R-805X (yes, a receiver-amplifier with OnkyoMC35Tech) WRAT, wide range amplifying technology -- and very decent headphone output that could hardly be called an afterthought, as is true on some integrated amps), also a Sennheiser Lucas (not as bad as its reputation once you turn theater mode off and turn down the bass setting) The KICAS is a recent acquisition and is of course in another league from the Onkyo, much less the Lucas.
Pioneer DV-490V (as transport only) with Musical Fidelity V-DAC, Onkyo C-707CHX,