Alpine S2-S80C Next-Generation S-Series 8" component speaker system

Product info: 2-way component speaker system 8" polypropylene/glass-fiber/mica woofer cone with High-Amplitude Multi-Roll surround 1" cloth dome tweeter with threaded removable housing in-line crossovers for easier installation handles up to 85 watts RMS (260 watts peak power) frequency range: 50-40,000 Hz sensitivity: 89 dB impedance: 4 ohms mounting depth: 2.615" Hi-Res Audio Certified Alpine S2-S80C owner's manual 2 Woofers 2 Tweeters (each has a 29" length of wire attached) 2 Flush mount housings (with tweeters installed) 2 Tweeter grilles (fixed) Two 37" Tweeter wires with in-line crossovers (each has quick slides on both ends) 2 Flush mount retention rings 2 Stealth brackets 2 Foam self-adhesive pads 2 Foam self-adhesive rings Eight 1-1/8" Screws 8 Speed clips Warranty information On-line product registration information Important Notice sheet Declaration of conformity Templates and specs on box General Speaker Size 8 Driver Design 2-way Woofer Design Cone Woofer Material Polypropylene/Glass Fiber/Mica Woofer Surround Rubber Midrange Design --- Midrange Material --- Tweeter Design Dome Tweeter Material Cloth Super Tweeter Design --- Super Tweeter Material --- Impedance (Ohms) 4 Weather-resistant No Grilles Included No Parts Warranty 1 Year Labor Warranty 1 Year Specifications Sensitivity (1W at 1 meter) 89 Sensitivity at 2.83 volts N/A Frequency Response 55 - 40k Hz Maximum RMS Wattage 85 Peak Power Handling (Watts) 260 Top-mount Depth (Inches) 2 5/8 Bottom-mount Depth (Inches) N/A Cutout Diameter (Inches) 6.982 Mounting Height (Inches) 0.285 Frame Width 8.256 Frame Length 8.256