I've just started using exactly this amp with my Maggies and have exactly the opposite experience, finding it a very warm sound (which I like). This warmth is identified by a wide swathe of critics, not just Ebaen.
The W4S is detailled. Could it be revealing something about your DAC or Pre that had been covered up by the NAD's coloration?
The W4S is detailled. Could it be revealing something about your DAC or Pre that had been covered up by the NAD's coloration?