Is that a remote dimmer, or rotary dimmer? I'll be ordering a pair of m64's to add to my model 60's. The m64's will be replacing my model 30's. Would be interested in testing the new dimmer, since the one I have can't handle 4x 2.4 amps. Also - what is the weight of the M64 versus the model 30 format? And, if you order a set of the m64's wit ha dimmer, do they come "plug and play"?