Amazon.com: Roland AC-33 Acoustic Chorus Battery-powered 30-Watt Guitar Amplifier, Black : Musical Instruments
Amazon.com: T-Power AC Adapter for Roland Model PSB-12U PSB12U AC33 ONLY Switching Power Supply AC DC Adapter Charger : Electronics
AC Adapter Compatible with Roland AC-33 Portable Acoustic Amp
Amazon.com: Roland AC-60 Acoustic Chorus Guitar Amplifier with Dual 30-Watt 6.5-inch Speakers, Rosewood : Musical Instruments
Amazon.com: 9V 2A Replacement AC DC Adapter Charger for Roland PSB-1U Drum Piano Keyboard Adapter Po Power Supply with US AC Cable : Musical Instruments