As most here agree, bi wiring won't buy you any improvement. However while on the subject of cables, I hope you give very serious consideration to power cables. Proper power cables prevent radio-frequency garbage from being fed back into the amplifier. This is the next best investment you can make after selecting the right speakers. Good power cords start at about $500.00. For your convenience I am including a link to one reputable dealer.

http://www.audioquest.com/power-cables/nrg-100

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