Alpine SPS-M601W 110W 6A1/2" 2-Way Type-S Marine Coaxial Speakers - White 7/8" titanium/PEI balanced-dome tweeter Silver UV-resistant grilles and high-temperature ABS custom frames Power range: 2-35 watts RMS (110 watts peak power) Frequency response: 60-22,000 Hz Sensitivity: 89 dB