Redkiwi, thank you very much for your comments.
You will most certainly never hear me say that some manufacturers apply XLR plugs to unbalanced cables and then claim they are balanced designs. However, I have read several times (including older A'gon threads) the simple statement that XLR-finish is not synonymous with balanced IC. Given I sometimes see one and the same cable offered with RCA-to-RCA, XLR-to-XLR or RCA-to-XLR at the purchaser's choice, it looked wise to explicitly inquire about the topology of any XLR-cable. Any additional thoughts from others posters on this?
I have no first hand experience, the Ayre-combo would be the first gear I'd like to use balanced IC's with. Which is precisely why I'd put a few big fat exclamation marks after the last sentence of your second posting as it summarizes the reason for my original question: Do owners of the same gear think it is wise/worthwhile/indispensable to go balanced. And then one more: Of the many brands and models available, which one seems the most rewarding, the most "right" if you want.
Karel