Power for the People With In-Your-Face wattage, the new Ultra Power Amplifier provides an outstanding boost to any mobile audio system. UPA424CS amp features MOSFET power output that provides clear, crisp, dynamic audio. The sleek, low-profile housing easily mounts in any location. Highlevel and low-level inputs allow you to connect the amp to any head unit. UPA424CS Amplifier takes mobile electronics to the next level.