Product Highlights: 5-1/4" component speaker system one-piece Damped Polymer Cone (DPC) cast aluminum basket 1-1/8" Acuflex coated silk dome tweeter external crossover with 3 tweeter level settings handles up to 120 watts RMS (500 watts peak power) frequency response: 45-25,000 Hz sensitivity: 90 dB at 2.83 V woofer mounting depth: 2-3/8" grilles included