They need a pure copper, "dark" cable, no silver. With native shoelaces, you will have to use "extra bass" filters. Maybe even stuff toilet paper with insoles (just kidding). Please bear in mind that I am not a "vychefob", I just have a good ear. I still (I'm super-old) can clearly hear 18kHz. There is practically no difference between balanced and regular 3.5 outputs. This means that the FH7s have their own well-placed sound and can play from anything (within reason). Quite decent gags, worthy of taking one of the three minimum mandatory positions for an advanced music lover, like "meat" (not to be confused with "trash").
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