The Phonic Sound Ambassador 75 is an active PA speaker with a built-in 4-channel mixer. The unit can be further customized to include 2 wireless UHF microphones. Other important features include XLR microphone inputs on channels 1 and 2, line input channels with 1/4" and XLR or RCA inputs, and all have individual volume controls. A link out connector with a 1/4" phone jack and XLR jack enables 2 Sound Ambassadors to be linked together to further enhance your set up. Additional speakers can also be added to share the power from the amplifier through the speaker out jack. Channels 1 through 3 are topped off with 2-band EQs, and the unit also features master volume control, a built-in limiter, and protection circuitry. The DC power inlet allows the Sound Ambassador 75 to be used in conjunction with portable battery packs, ensuring you're always able to use it—even when an AC power source is unavailable. All of these features combine to make the Sound Ambassador 75 PA speaker a must-have for touring bands, clubs, and karaoke.