I would think that any discerning audiophile would want to stretch the budget to acquire blue (legal or not) rather than black fuses because:
"The new SR BLUE Quantum Fuse was developed over a two year period and represents Synergistic Research's most advanced UEF Technology to date. At its heart is a completely new UEF/Graphene coating that delivers a dramatic increase in resolution and holographic realism over SR Black"
Obvious isn't it? By the way, each fuse receives the 1,000,000 volt Quantum Treatment. I bet that's an experience not to be missed.
Alan