The differences are more in character than quality - both do things their own way, both are enjoyable, and both end up roughly on the same level but for different reasons. For LCD-2 I'd probably give the edge to Taurus, though CMA800R is not far behind. For me, the Taurus brings out the real flavor of Grados. Problem is, I don't particularly enjoy that flavor.... which is why I normally prefer them with a more colored amp. I do enjoy the PS500 on the Taurus though.