SUNN SX4150 4-Channel Powered Mixer PA Head 135 wpc Amplifier w/ 5-Band Graphic Equalizer The SUNN SX Series integrated mixer/amplifiers have been designed for easy setup and simple but versatile operation. Requiring only the addition of microphones and speakers, the SX powered mixer is a self-contained sound reinforcement or keyboard amplification system with features and performance generally found only in units costing much more. Each preamp channel is provided with XLR and 1/4" phone inputs, Level, Low and High frequency controls, Monitor and Effects/Reverb Controls. The master sections all feature Main, Monitor and Reverb level controls, a graphic Equalizer, a power amplifier and a versatile patch bay. The power amplifier in this SX 4150 is capable of driving a four ohm load to 135 watts. Included in sale are two Ramsay speakers with 180 watt capacity at 8ohms, and two speaker stands. A great simple live sound setup.