This Speaker system consists of two 4 x 4-inch array speakers and one 15-inch subwoofer with a built-in 4200-Watt amplifier (Watts RMS). The amplifier features balanced and unbalanced line inputs, as well as digital media player (MP3) with USB/SD and Bluetooth inputs. Two Microphone Inputs: Two 4 x 4-inch array speakers 15-inch subwoofer Built-in 4200 Watts amplifier with outputs for 1 or 2 passive, Bluetooth inputs Balanced (XLR/TRS) and unbalanced (RCA/AUX) inputs Balanced XLR outputs Master and Sub volume controls 0 - 180 Degree phase switch.
