Sorry if I one up you but my speaker cables do not touch ANY surface between amplifier and speaker, not even an insulator. - They "fly" between the terminals because they so short they are under constant tension and just like "high tension wires" they just seem to conduct more power effectively. I do get some occasional high frequency buzzing and zapping but it's worth it. I did this inside my amplifier and speakers too- the wires inside the amp were actually touching the chassis! and the wires inside my speaker were making contact with the MDF enclosure and the acoustic polyfill. The crossover is now suspended between wires inside the enclosure too- it was mounted to the floor of the speaker. How would I describe the sound- tight!