Specifications: 4" 2-way speakers (pair) polypropylene Plus One™ woofer cone edge-driven silk dome tweeter handles up to 35 watts RMS (105 watts peak power) frequency response: 75-20,000 Hz impedance: 3 ohms sensitivity: 90 dB at 2.83 volts top-mount depth: 2" grilles not included warranty: 1 year