These speakers are an exact replacement for many OEM hot tub speakers and also work well in any marine or outdoor application because of their water resistant properties. - Ideal for all outdoor uses - Dual cone design for good frequency response- 6 oz. magnet weight - 25 watts maximum power handling each speaker - 4 ohm impedance - 65Hz-16.5kHz frequency response - 1 3/8" mounting depth required - 4 1/2" diameter cutout installation hole requirement- 6" overall grill diameter- Full plastic encasement frame and permanently attached integrated grill - Resists moisture, cold, heat and shock - 1 year manufacturer warranty