Power handling: 35 watts rms, 100 watts peakPolypropylene cone woofer1/2" MylarŪ dome tweeterFrequency response: 65Hz-20kHzProtective plastic enclosure that aids sound projectionSP-6ECS: Overall: 9 1/2" x 5 1/2"SP-6ECS: Cut out: 8 1/6"6" 100-Watt In-Ceiling Enclosed Speaker SystemSP-8ECS: Overall: 11" x 7"SP-8ECS: Cut out: 9 5/8"