Mark, coils of wire form inductors, which roll off the high frequencies. This is how in a speaker crossover the highs are kept out of the woofer. The practice is frowned upon, but a few coils of speaker wire wouldn't have an appreciable effect. Shielded wires, such as the cables you mention, wouldn't create a significant inductance, so don't worry about it.

Yes, I understand that the regular QS T-brackets don't leave enough room to use banana plugs.

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Enjoy the music, not the equipment.