I have just upgraded my CD player from an ageing Pioneer PDS 801 to a shiny new Cambridge 640C v2. This is currently connected to a Cambridge Audio A5 amp and (also new) Monitor Audio Bronze BR2 speakers. I plan to upgrade the A5 amp soon with the Cambridge 640c V2 amp, but need advice on cables. Currently the MA's are bi-wired with Cable Talk 3 cable, which I have been using for many years as well. Do you think I would benefit from upgrading this to QED silver anniversary biwire instead? I am using Chord Calypso interconnects by the way if this helps influence a descision. The Cable Talk has always proved its worth, but is it time to get something more up to date?