sorry if this question has been popping up all the time... but i've seen most people happy with amperex 6922s, does anyone have any other similar tubes to recommend, i'm looking for tubes for good vocals, and also recommendations for 6922s with laidback soundstage

if i would like my earphone's cables changed.. how much would it cost.. or do they even do it at all? (no more warranty already)

i live pretty far away probably on the other side of the globe from you guys.. and the talk abt this hf-1 excites me! its a wooden driver housing!! probably akin to the rs-series.. but is the resonating chamber going to be plastic?? but 225 voice coil seem to have the freq response of 20hz...