Roland AC-40 - 35-watt 2x6.5" Acoustic Amp Powerful and lightweight stereo amplifier with natural acoustic tone Dual custom-designed 6.5-inch speakers deliver impressive sound levels with superior projection Stereo chorus and reverb effects for rich, spacious sound Dual channels: GUITAR (1/4-inch input) and MIC/LINE (XLR/TRS input), each with three-band EQ and independent effects controls AUX IN with level control for connecting music players