yep. i was in the same position as you when i got my RH450. Had a 2x10 and 15 Trace from a previous rig. I thought they paired nicely and shifted some air. Although at the time i was happy with the sound, when i eventually got hold of a cheap RS212 it took the RH to a different level in my opinion. My advice would be to go for it with your existing cab. Then it'll be all the sweeter when you get the matching cabs!