The MSR100 fills many sound reinforcement and stage monitor needs in one inexpensive, lightweight package. As a mixer, power amplifier, and speaker system combined in a single, compact unit, it’s perfect for small events and club gigs. Mix in a CD player, rhythm machine and/or keyboard with your voice — all without the need of a separate mixer or power amplifier. And since it’s made by Yamaha, the MSR100 provides the high-quality performance you need with exceptional ease-of-use and reliability.