@richard, i have used it with m.a. bronze br5, a floorstander, never had problem driving, easy load, sounded great. Also with b&w cm1 which is a bit harder to drive due to its low sensitivity but the k2 handled the load easily, i was impressed.
i plan to buy a dynaudio audience 70 used, it bothers me if my k2 can drive it decently.
@the record spot, yes i've read some great reviews of the hk990 and i really would love to hear them together so i could compare the two. thanks for the input it helps me a lot. how good is the hk990?
the k2 is a very good all-rounder with any genre of music. i wanna hear opinions from those who already had hk990.