I've got Grado RS-1's and the Grado RA-1 battery powered headphone amp running directly into the output stage of my Sony SCD-1 courtesy of Mr. Cardas's Golden Reference RCA.(Don't dismiss the battery powered RA-1 Grado -- it's dead quiet, and really let's the source strut its stuff. Critics might call the Grado a touch analytical, but I'm sold on Grado attention to detail and no over-emphasis on any one aspect of the headphone experience in sacrafice of another. Sterophile Class A, for whatever that's worth.
On SACD it's wonderful. Better than my aging STAX. I haven't heard the big Sen 600's on a tube headphone amp, but on Headroom's best amp the Grado's had a slight edge -- probably comes down to listener preference -- I know others who prefer the Sens.
That said, the STAX vs Sen 600 vs Grado RS-1 is classic audiophile battle with each system offering a different experience. Mixing in some of those liquid tube preamps vs headroom's cross feed systems only makes it that much more fun -- and I have no doubt within a year that I'll have two complete headphone systems.
On SACD it's wonderful. Better than my aging STAX. I haven't heard the big Sen 600's on a tube headphone amp, but on Headroom's best amp the Grado's had a slight edge -- probably comes down to listener preference -- I know others who prefer the Sens.
That said, the STAX vs Sen 600 vs Grado RS-1 is classic audiophile battle with each system offering a different experience. Mixing in some of those liquid tube preamps vs headroom's cross feed systems only makes it that much more fun -- and I have no doubt within a year that I'll have two complete headphone systems.