I am currently using Opus #3 with my Campfire Nova. I find the DAP pairs well with my IEM but I wish to improve the treble extension a little bit while conserving the rich mid and low. I narrowed down my choices of cable to hybrid cable (Copper and Silver). Is it worth to spend few hundred on cable like ALO Audio Ref 8 or Effect Audio Eros II? Or just get iBasso CB12s since it is a hybrid cable as well.