For audiophiles who know exactly what they are dong, there is not a percentage. For folks who may be unsure.. Then the budget audiophile should start with a 10% for all cables. For the op here, with a $100,000 system The ten percent would be perhaps for interconnects, and another 5% for powercords.
Hmmmm....I swear there’s a Freudian slip in there somewhere.
Hmmmm....I swear there’s a Freudian slip in there somewhere.

