I have a Crate XK 100 keyboard Amplifier that's for professional on-stage musicians, It has 4 main channels and is professional in every respect, you can research information on the internet on how great they perform on stage, Latest sales on Ebay and Reverb run about $250 to $300 plus shipping for the amps, You can use this as an over the top guitar amp as well, It has a 15 inch woofer speaker for fantastic lows and 2 Leson dome tweeters for fantastic highs and a 5 band graphic equalizer, If you are a professional doing shows on stage this is for you, You can use out going signal line plug ins to record, to connect into house PA systems or other speaker systems, You can position the amp (tilting it back) differently as seen in pictures, I would like 200.00 or best reasonable offer, Frank, show contact info