6.5" Mid-Range MAX Power: 480 Watts RMS Power: 140 Watts Impedance: 4-Ohm Ferrite Magnet With Bullet SKUPRO-GM6.4BNominal Diameter6.5" / 165.1mmNominal Impedance4 OhmRMS Power Handling140WMAX Power Handling480WSensitivity (1w/1m)93dBFrequency Response100Hz-6.3KHzRecommended HI Pass Crossover120HzPair or SingleSingleGrill IncludedNo MOTOR Voice Coil Diameter1.5" / 38.1mmVoice Coil Former MaterialKaptonWinding MaterialCCAWCone MaterialPaperDust Cap MaterialN/ABullet Material / ColorRed AluminumSurround MaterialClothBasket MaterialSteelBasket Color/FinishMatte BlackMagnet MaterialFerriteMagnet Weight23 oz THIELE & SMALL PARAMETERS Equivalent Volume (Vas)4.9L / 0.173ft3Excursion (one way) (Xmax)N/AFree Air Resonance (Fs)113HZMechanical Factor (Qms)11.955Electrical Factor (Qes)0.705Total Factor (Qts)0.666Mechanical Mass (Mms)9.862gMechanical Compliance (Cms)0.198mm/NBL Factor (BL)5.75Voice Coil Inductance (Le)0.453mHCone Area (Sd)132.73cm2DC Resistance (Re)3.3 ohm MEASUREMENT Overall Diameter6.57" / 167mmOverall Depth2.7" / 69mmFront Mount Baffle Cutout5.7" / 145 mmMounting Depth2.5" / 64mmMotor Diameter4.33" / 110mmGross Single Unit Weight (lb)4Single Unit Box Dimensions W x L x H (Inches)7.3 x 7.3 x 3.25Quantity of Units in Master Carton8Gross Master Carton Weight (lb)32Master Carton Dimensions W x L x H (Inches)15.25 x 15.25 x 7.5