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Amazon.com: AC Adapter Compatible with Roland AC-40 Acoustic Chorus Guitar Amp : Musical Instruments
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AC/DC Adapter Compatible with Roland AC-33 AC-33-RW AC33 AC33RW AC-40 AC40 AMP Acoustic Chorus Guitar Chorus Combo Amplifier Amp DC13V 13V - 14V 4A Power Supply Cord Charger PSU - Walmart.com
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