Radio Shack 250 Watt Pa Power Sound Speaker Amplifier with Equalizer Stereo Audio 250W amplifier delivers the amplification you need for larger audiences or settings Easily integrates with mixer, speakers and microphones for a total public address solution Inputs for 4 microphones (both XLR and 1/4"), CD, musical instruments and more Individual volume levels for microphones and inputs allow you to customize the sound LED output meter, clipping indicator and protection indicator let you monitor levels at a glanceFeedback filter allows you to avoid undesirable microphone feedback,