Features: Component speaker system includes 2 woofers, 2 tweeters, and 2 crossovers 6-1/2" treated paper composite woofer cone with butyl rubber surround 1" soft dome textile tweeter External Morel Crossover Resolution (MXR) crossover Handles up to 90 watts RMS (180 watts peak power) Frequency response: 50-20,000 Hz Sensitivity: 90.5 dB at 2.83 V Woofer mounting depth: 2-3/8"