Roland JC-40 Jazz Chorus Combo Amplifier Features: The classic Jazz Chorus sound in a smaller-sized combo Stereo 40-watt amp powers two 10" speakers for large sound Mono or stereo input for use with guitars, keyboards, multi-effects processors, and more Built-in effects include vibrato, chorus, distortion, and reverb Stereo effects loop lets you hook up your favorite effects Roland's trademark Dimensional Space Chorus for immersive 3-D stereo sound High-quality reverb effect for lush, expansive ambience Footswitch jacks for turning chorus and reverb effects on/off Stereo FX loop is switchable from series to parallel