Kicker 4 KB6000 6.5" Black Full Range Indoor/Outdoor/Marine Speakers 11KB6000B MAX Power: 150 Watts per speaker (300 watts per pair, 600 Watts per 2 pair) RMS Power: 75 Watts per speaker (150 watts per pair, 300 Watts per 2 pair) Type: 2-way Components per Enclosure: 16.5 Woofer; 5.1" x 12.7" tweeter Frequency Response: 55Hz-21kHz