I have hade both in my system (Dunlavy IV/a's, Ailoia amps (soon to be Plinius SA-102's, yes a pair, I'm so excitied just waiting for them, Ailoia pre-amp, and the Sony SA-CD1 with the mod in it) and the Vahalla's were the best hands down. I liked them much better the SPM's and liked them better then my current NBS Statement's. They are extremely revealing and transparent, so if your equipment isn't up to them they well be happy to let you know. But other then that they are the best interconnects that I "havn't" heard.
Judd MacRae
Judd MacRae