The AC-90 isn't just any acoustic amp. This addition to Roland's industry-leading AC-series amp family, also doubles as a portable PA system for soloists, thanks to its phantom powered microphone input. The performance, portability, and top-quality construction, and world renowned sound quality in the AC series are all here in this stunning amplifier. Loaded with high-performance neodymium speakers and 90 watts of power, it provides a rich, powerful sound, and is lightweight and highly portable. The stereo 2-way speakers give sparkling transparent highs, especially with the stereo chorus dialled in, and incredibly powerful low-frequency performance. In addition to the chorus, you also get delay and reverb, and all can be controlled by a footswitch.