Roland AC-33 acoustic guitar combo amplifierIntroducing the Roland AC 33 acoustic guitar combo amplifier Rich, deep, stereo sound to go introducing the AC 33, the worlds first battery powered amp made specifically for acoustic guitar. Portable yet powerful, the AC 33 provides true stereo sound, Guitar and Mic Line channels, custom tailored effects, anti feedback, and a Phrase Looper. But this amp was made to go places no amp has gone before. And now the AC 33 is available with beautiful