Ok, i will take a deeper look, thank you very much
And those models have about the same sound quality as the HD 600 ??
Well I would say the TH-X00 Ebony is the closest to the HD 600 sound, while the TH-900 Zolkis mod and the HP-100 & 150 mods are closer to perhaps the AKG K7XX ('darker' limited edition of the AKG K701 series), and the Ether C Flow (closed version) is closer to the HD-650 sound, yet these are all in the same general ballpark signature as the HD-600 in that they all have a moderately neutral frequency response (FR), moderately detailed / clean sounding, good dynamics (drums hit hard), organic tonality and good sounstage.
However I would also be highly interested in reading any impressions on the Headphile modded headphones too.