If you wish to sing, forget using just the keyboard speakers - you're going to experience feedback. Of course, there is a workaround. You can mount deflectors over the speakers, which look a lot like air scoops on cars. This helps prevent feedback by sending all the sound forward toward the audience. Additionally, you can lower the mid and high mic EQs, and raise the mic's low EQ setting, but only the men in the NH audience will be able to hear you sing. This is because nature and the aging process causes men to loose high frequency hearing sounds, while women tend to loose the lower frequency sounds. I told my wife that was the way God intended it to be - I can't hear her, and she can't hear me!

Gary