Roland AC-90 90-Watt 2x8-Inch Acoustic Chorus Guitar Amp Bundle with Tuner, Instrument Cable, and Polishing Cloth Lightweight yet powerful featuring state-of-the-art neodymium speaker technology Stereo 2-way speaker system provides full-range performance Dual channels: Guitar input (Piezo/Magnetic) and phantom-powered Mic/Line input Roland's famous stereo multi-band chorus with WIDE mode, plus reverb/delay Anti-feedback control feature