Seismic Audio's line of Plate Amplifiers gives you the ability to build your own powered speaker cabinets and powered subwoofer cabinets. The SA-APP008 is a Class AB amplifier designed for Full Range Loudspeaker enclosures. It has a power rating of 60 Watts RMS and 120 Watts Peak. This amp has Treble, Bass, and Master Volume controls as well as over current and overload protection. When paired with the right speaker driver and enclosure, these plate amplifiers produce the loud, clear, and clean sound to reinforce your PA loudspeaker system. With your purchase, you will receive one 60 Watt Class AB Plate Amplifier pictured and described above.