BOSS Audio Systems CH6520 Chaos Series 6.5 Inch Car Door Speakers - 250 Watts Max, 2 Way, Full Range, 1 Inch Tweeter, Coaxial, Sold in Pairs, Bocinas Para Carro DIMENSIONS: Overall Diameter: 6.61"/ 168mm, Installation Hole Diameter: 5.51"/ 140 mm, Mounting Depth: 2.13" / 54 mm SPECS: Coaxial, 2-Way System, 1” (25 mm) Tweeter SPECS CONT'D: Max Power: 250 W, Nominal Impedance: 4Ω, Frequency Response: 100Hz-18kHz, ±3 dB, System Sensitivity (1W/1m): 90dB, 6dB/Oct High-Pass Filter COMPOSITION: Rubber Surround, Poly Injection Cone, Stamped Steel Basket WARRANTY: BOSS Audio Systems provides a powerful 3-year platinum online dealer warranty so long as the purchase is made through Amazon.com. We strongly encourage professional installation of this product to ensure proper and safe functionality