Powersports Coaxial Speaker is built to sound great on the road or the trail even through a helmet Tough construction that stands up to the elements is combined with high- grade sound quality, without modifications or adding extra weight. Add a PXA amplifier for a complete system, meant for the road and trail These PS speakers work best with 50 watts of recommended power. See below for more details. SPEAKER PS 6X9 COAX 2OHM