Gunwale Mount SpeakerPart Number: MA-9020 Mount these full-sized speakers out of the way under the gunwale, where they're protected from the elements, yet close enough to deliver rich, full sound. The molded, one-piece plastic grill protects the speaker components from splash and spray. The two-way vented port design offers full range response. Peak power 200 watts /pair.SpecificationsFrequency Response: 55Hz to 20KHz (2 way)SPL: 86dBPeak Power: 200W/pairSpeaker Impedance: 4 ohmWeight (each): 3.90 lbs per SpeakerOverall Dimension: 10-7?16 x 6 x 5-5?16 (265mm x 152mm x 135mm)Cone Size: 5 (127mm)