I have using meridian 508.24 with rca interconnect (cello) I have known the general difference balanced. and rca. I am considering Nirvana s-l balanced interconnect but I am not sure this is nice choice. for reference, my system is below : sp : sonus faber Guarneli Homage (cable : nirvana S-L) power : mark 23.5L pre : mark 26L (cable : nirvana S-L balanced) Highly appreciated good recommendation.