The ACS combines classical guitar concepts with design elements of a solid body guitar. The Multiac ACS' incredibly comfortable neck, combined with a maple body and Koa Extreme top, contribute to making it our most aesthetically beautiful synth access guitar. Although the body is chambered, the response of the Koa top is more typical of a solid body guitar than a traditional acoustic guitar. This design results in an instrument that is virtually feedback-free, making it easy to use even when playing at high volumes. The ACS and ACS Slim system includes individual transducers powered by a custom RMC™ preamplifier system. This system not only produces excellent amplified sound, but also produces a hexaphonic output via a 13-pin connector allowing direct access to RolandTM GR-Series guitar synthesizers.