Features: 3-way car speakers 6″x9″ carbon mica woofer cloth and rubber hybrid surround 2-5/8″ PEI midrange driver 9/16″ polyetherimide (PEI) dome tweeter handles up to 70 watts RMS (500 watts peak power) frequency response: 58-21,000 Hz sensitivity: 88 dB mounting depth: 3-1/8″ grilles included