ROLAND AC-60 Acoustic Chorus Guitar Amp Power: 90 W stereo Two channels: Guitar input (Piezo / Magnetic) and phantom-powered Mic / Line input Speakers: 2 x 8 in. Woofers; two 8 cm x 5 cm x 2 cm (3 in. X 2 in.) Tweeters Controls: Mic / Line channel: Phantom Switch, Select Switch (mic / line), volume, 3-band EQ, chorus switch, chorus Knob, reverb knob (anti-feedback), frequency knob, start button, mute switch, master knob, power switch Ind Loaded with high-performance neodymium speakers and 90 watts of power, the Roland AC-90 amp a rich, powerful sound while remaining lightweight for easy transport The AC-90 employs a stereo 2-way speaker system that delivers transparent highs - great for the built-in multi-band stereo chorus - while also providing incredibly powerful low-frequency performance Legacy of Excellence The AC-90 is not just any amp on the block | it's the long-awaited addition to Roland's industry-leading AC-series amp family .