The unit is balanced throughout according to Meridian. I use PGS Gold balanced. I had been using RCA Prior. I think the Balanced format gives a little blacker noise free background. Steve
I switched from Cardas Golden Cross (RCA) to Alpha Core Goertz Sapphire (XLR, silver and flat). The change yielded better treble definition, but with a slight dimunition of bass output.
I use HT Pro-Silway Mk IIs with my 508.24 and throughout my system. I also use RCA because my preamp is not balanced. The Pro-Silways were a significant improvement over the other brands I tried (DH-Labs, Audioquest--middle range, and kimber select). If you can use the balanced, though, go for it. I've heard a lot of comments similar to that of 7671 above.
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