Enhance your audio system with this Alpine Power Pack 4-channel car amp. The Dynamic Peak Power technology doubles the amplifier's output power on musical peaks by providing a quick energy boost when needed. This Alpine Power Pack 4-channel car amp delivers 50 watts RMS per channel for maximum output, and the tiny chassis ensures it fits anywhere in your vehicle. | Alpine | | 400W Class D Bridgeable Multichannel Amplifier with Built-In Crossover | Black | Best Buy