Roland KC-220 Battery-Powered Stereo Keyboard Amplifier 30W for sale online | eBay
ROLAND KC-220 KC SERIES 30WATTS STEREO KEYBOARD AMPLIFIER (30W/ 3-CHANNEL STEREO KEYBOARD AMPLIFIER WITH 2 X 6.5" WOOFERS/ 2 TWEETERS/ XLR MIC INPUT/ REVERB/ CHORUS EFFECTS) I SEAMUSICIAN
Roland KC-110 Amp - How to get More Power out of it! - YouTube