Product Details: 2-1/2" X Series Mid-range Car Speakers. Power Handling: . Peak: 200 watts per pair / 100 watts each. RMS: 100 watts per pair / 50 watts each. Easily installs as a standard speaker—no custom brackets required. Includes a mounting adapter designed for direct fitment in many GM, Mopar, Toyota, Subaru, and Mercedes vehicles—simply break off the tabs needed for your application. Anodized Aluminum cone material. Inverted Butyl Rubber speaker surround. 1" High-Temperature voice coil. Neodymium magnet motor structure. Top-mount Depth: 1. 27". Cutout Dimensions: 2. 4". Impedance: 4 ohm. Frequency Response: 200 - 20000 Hz. Sensitivity: 84 dB. CEA-2031 compliant. Speaker Grilles Included. Authorized Internet Dealer. MFR #: XQS2. 1-year Manufacturer's Warranty. Priced Per Pair. T/S Parameters: Voice Coil Resistance (Re): 3. 2 Ω. Free Air Resonance (Fs): 150 Hz. Equivalent Compliance (Vas): 0. 380 L. Electrical “Q” (Qes): 0. 85. Mechanical “Q” (Qms): 5. 258. Total Speaker “Q” (Qts): 0. 732. Moving Mass (Mms): 2. 097 g. Mechanical Compliance (Cms): 0. 55 mm/N. Magnetic Strength (BL): 2. 875 T·m. Effective Piston Area (Sd): 3. 42 sq. in (0. 0022 sq. m).