About the Alpine S2-S65C It's time for high-res We're big fans of Alpine's push to give more drivers access to high-res audio in the car. Using technology developed for their flagship F#1 Status Series, Alpine's Next Generation S-Series car speakers provide access to all the wonderous detail of your favorite high-resolution audio files at an appealing price. We recommend aftermarket power to drive these speakers, but even with factory power, their ultra-wide frequency response ensures a detailed, authentic sound. Innovative materials Alpine packs supreme capability into these speakers by using highly effective materials and proprietary design elements. The lightweight woofer cone, crafted from polypropylene, glass fiber, and mica materials, serves up the essential high output/low distortion sound required for high-res performance. The High Amplitude Multi-Roll (HAMR) surround brings out the best in bass by allowing maximum cone movement. A separate 1" cloth dome tweeter serves up all the high-frequency detail you've been missing with factory sound. Because tweeters can be challenging to install, Alpine provides in-line crossover systems and a threaded removable housing to make sure you have what you need to make them sound their best. Grilles are not included; the factory grilles should be suitable for most applications. Optional grilles are available for custom installations. Product highlights: 2-way component speaker system 6-1/2" glass-fiber woofer cone with High-Amplitude Multi-Roll surround 1" cloth dome tweeter with threaded removable housing handles up to 80 watts RMS (240 watts peak power) frequency range: 55-40,000 Hz sensitivity: 88 dB impedance: 4 ohms mounting depth: 2.28" warranty: 1 year MFR # S2-S65C Item # 500S2S65C California customers: Please click here for your Proposition 65 WARNING. What's in the box: If you need assistance accessing this owner's manual, please give us a call. 2 Woofers 2 Woofer mount adapter brackets 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 Eight M4x6.5mm Machine screws with split lock washers attached Eight M4 Nuts 6 Flat washers 8 Speed clips Warranty information On-line product registration information Important Notice sheet Declaration of conformity Template and specs on box Features & specs General Speaker Size 6 1/2 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) 88 Sensitivity at 2.83 volts N/A Frequency Response 55 - 40k Hz Maximum RMS Wattage 80 Peak Power Handling (Watts) 240 Top-mount Depth (Inches) 2 5/16 Bottom-mount Depth (Inches) N/A Cutout Diameter or Length (inches) 5 1/8 Mounting Height (Inches) 0.44 Frame Width 6.506 Frame Length 6.506 The Alpine S2-S65C replaces these items: Alpine S-S65C Features Woofer installation: Without an adapter, the woofers fit many standard 6¾" applications. Given their required cutout, they will also fit some standard 6½" applications without an adapter, but new screw holes must be drilled. Using the included adapter brackets they can be mounted in a variety of standard 3-hole 6½" applications, Ford 4-hole 6½" applications, and non-standard 6¾" applications, without any modification. Please enter your vehicle information to confirm fit. Tweeter Mounting Options: The tweeters can be flush mounted using the supplied flush mount brackets and rings. Once mounted, the tweeters can swivel approximately 20° for optimum imaging. The tweeters can also be mounted in factory tweeter locations behind factory tweeter grilles using the supplied stealth mounting brackets. (The stealth brackets have a multitude of tabs used for different mounting configurations. When not needed, the tabs are easily removed. The factory location measurements in the chart below are generally minimums, with some tabs removed.) Flush Mount Factory Location (bottom mount) Factory Location (top mount) Factory Location (under factory grille) Depth 0.75" 0.721" 0.64" 0" Height 0.35" 0" 0.08" 0.72" Cutout Diameter 2.0" 1.25" 1.715" N/A Frame Diameter 2.28" 1.715" 1.715" 1.715" Crossovers: The Alpine S2-S65C features low-pass crossovers attached to each woofer's input terminal and high-pass crossovers in-line with the tweeters' speaker wires. The terminals on each tweeter wire easily plug into the tweeter and corresponding woofer. (They only plug in one way, so the polarity can't be reversed.)