Biamping question

20 to 25 cm at nearly the speed of light would not make a perceivable difference. Silver is usually preferable for the highs but it's all a matter of taste and component matching. If the system seems bright, try the copper for the highs. The same goes for speaker cables.

But, if i have silver for lows, in this case 2 way speakers.
Isnt silver good then for voices and tighter bass ?

Perhaps i should get another AQ Amazon and sell Aq Anaconda and have silver all the way w i/c´s and copper sp cables ?

Only one caution I would add to the previous excellent remarks. IMHO, I would start out with two pair of alike and neutral sounding cables (like Isreal Blume's CST IC's) so that I could discern the sound of the amp/speaker biamp combo before I started playing with attenuating frequency and time/space stuff with different cables. Create one problem for yourself at a time, sort it out and move on to the next. If you don't it could be very confusing in your evaluation. LOL!

R f sayles,
Isreal Blume's CST IC's. Have never heard of them !? Is it you who makes them ?

Found them while searching on the net.

But something in me want to smack your face, real good. LOL!