I've owned VSMs (GenIII RCs) and now have upgraded 626s, and am familiar with the sound of other models. My 626s were a real step up from the VSMs; they are faster, more open and more dynamic. The RM40 is much more of a step up, with wider bandwidth, a much larger image, and lower distortion. Order yours with at least the Auricaps and the new FS tweeter, and you won't regret it, on music or HT. Have fun!