Sunny, the Yamaha Keyboards are famous (infamous?) for not summing to Mono "clearly" in regards to the Bose System. ***

You'll find a lot of help regarding this at the Bose Forums, but in general I agree completly with what Gary said. Things will be easier with a Tonematch, but it's not a necessity. If you ARE using a Tonematch, don't forget to experiment with the Tonematch presets (I suggest "General Keys").

It sounds like you've only recently purchased the system, so don't forget there's a learning and adjustment process with ANY new equipment.


*** I'm not trying to diss Yamaha Keyboards or Yamaha as a Brand, or make fun of anyone using Yamaha equipment in general here guys, but go ahead and make an indignant "Yahama-rules-and-you're-an-idiot" post in reply to mine if you want.....