This 4-channel rack-mountable professional mixer is an essential piece of DJ/audio equipment. There are 8 line inputs, two of which can be used for phono (turntable) input, and 2 mic inputs, including one combo balanced XLR/1/4" input. The mic channels have discrete 3 band EQ, low frequency kill buttons and a talkover switch, while each of the 4 stereo channels has its own gain control. Includes 8 sound effects that can be modulated by speed and volume, including gun shot, laser, tron blast, rim shot, siren, emergency, UFO, and cymbal. You can plug into the RCA effects send/return loop for an external effects setup, which can be toggled with a button on the front console. The dual LED display meters show your levels so you'll always know if your signal is too loud, too soft, or just right. The assignable crossfader lets you cut up two channels for the ultimate mix. It's get plenty of outputs: two masters (stereo 1/4", stereo RCA), RCA record outputs, RCA zone outputs, and a 1/4" headphone jack output. Get the ultimate control over your sound with two 10-band equalizers, one for each output channel. If the beautiful blow glow this device emits is not enough, plug a 12V gooseneck lamp into the lamp BNC connector. The PYD1939 is ruggedly constructed and runs on 115 or 230 V.