Our NEW PA SUB15 was designed to add depth to the first two octaves of our PA15, PA10 or any other portable speaker that has an output jack, even YOUR CAR! As well as being completely portable, without the need for nearby electricity. The PASub15 contains a pro-audio 15-inch woofer along with a powerful 300W RMS (600W max). Class D power amplifier with user adjustable active crossover for the best sound possible in the lightest package with the longest battery life.