RMS Power: 150W x 4-Chan. @ 4 ohms</br>600 Watts RMS</br>Class D</br>Variable High-Pass and Low-Pass Filter</br>Blue LED Power/Status Indicator</br></br>Product Description</br></br>600W PDX Series 4-Channel Power Density Digital Class D Car Amplifier</br><br/>http://www.amazon.com/gp/product/B003FJJROS