When the KN2000 and KN3000 came I purchased a small Yamaha speaker. A woofer. When I played the woofer turned itself on. When I stopped playing after a minute or two, it turned itself off ?Fantastic. I use it with my KN7000, it adds so much. I?m guessing it is about 60 Watts. The speaker has a control (variable crossover) allowing you to select the range of amplification.

Have they made any speakers like this to compliment the keyboard?
I am talking about a speaker that is made with the keyboard in mind, not the computer speakers.