Mofi, I used biwire cables with my previous Infinity Reference 60's, Renaissance 90's & later, Marten Coltrane Alto's. With my Ref 60's, I initially ran Audioquest single wires with the factory gold plated jumper plates before upgrading to Audioquest Slate biwire cables. I'm sure I heard a tad bit more resolution and space, though i'm not sure how much of that owed to the higher quality Slate cable.
My current Magico S5's are single wire only. So wnen I stepped up to the S5's I traded up my old Jorma Prime biwire cables for Jorma Statement single wires. Interestingly, Jorma Kosky found a single run of Statement sounded better than Prime biwires! That is because one pair Prime biwire and One Pair Statement single wire with jumpers costs about the same, but with higher sound quality so it is lower in price/performance.
My current Magico S5's are single wire only. So wnen I stepped up to the S5's I traded up my old Jorma Prime biwire cables for Jorma Statement single wires. Interestingly, Jorma Kosky found a single run of Statement sounded better than Prime biwires! That is because one pair Prime biwire and One Pair Statement single wire with jumpers costs about the same, but with higher sound quality so it is lower in price/performance.