What would people say is the key factor for speaker cable ? Is it equal cable lengths for fronts & Centre or High quality cable but not equal length ? The reason I ask is I may be able to buy some 2nd hand QED Silver Anniversary but one of the cables lengths will have to be longer that the other two. My alternative is to buy a cheaper cable that will allow me to have 3 x 4m runs to each speaker (even though two of the speakers are only 1m from my amp). Will I really notice any difference if I run 2 x 1m and 1 x 4m to the fronts ? I've purchased IXOS 607 for the rears. Cheers, Mike.