Features 21-channel mixing console Designed to meet the needs of churches, schools and public venues Incorporates a unique set of features that not only make it easier to achieve outstanding sound quality, but also simplify normal operation Automix, an automatic mixing function provided on the first four channels. Automatic mixer watches the incoming levels and automatically turns down unused and low priority inputs to give dominance to the main microphone Dimensions: 28.250"W x 17.250"D x 6.250"H Description Product Description The Peavey Sanctuary Series is a breakthrough group of mixers specifically designed to make pro quality audio really simple and cost-effective for houses of worship. See, Peavey knows that in most cases, churches and other worship centers simply cannot afford to hire an experienced sound technician. So they put their design team to work creating a mixer that can quite literally do most of the work all by themselves. For instance, the built-in Automix function will switch from lapel to pulpit microphones automatically and even turn the volume down when a microphone is not in use. Special Mid-Morph Equalization adjusts to give clarity to voices while eliminating boominess, while the Feedback Ferret automatically seeks and destroys ear-piercing feedback. With an unwavering attention to detail, the Peavey Sanctuary Series are investments that will pay big dividends in ease-of-use and flawless audio quality for any worship services.