These FOUR BOSS MR6B 6.5" 360W Dual Cone Black Marine Audio Speakers can handle 180 Watts of MAX Power per pair and 360 Watt per 2 Pair (90 Watts per speaker). They feature a Kapton Voice Coil, a Poly Carbon Cone, and a mounting depth of 2.1875-inches. These BOSS MR6B 6.5" 180W Dual Cone Black Marine Audio Speakers are perfect for outdoor and Marine use!