High power 6.5 Mid/Bass driver for use in concert sound systems or in high power auto sound as a mid/bass or a midrange driver. Works well in tiny sealed or vented enclosures and in Infinite Baffles too. Nominal Basket Diameter: 6.5 165.1mm. Nominal Impedance: 8 ohms. Power Rating: Watts: 175W. Music Program: 350W. Resonance: 122.57Hz. Usable Frequency Range: 84Hz - 4kHz. Sensitivity: 94dB. Magnet Weight: 30 oz. Gap Height: 0.25 6.35mm. Voice Coil Diameter: 2 50.8mm. Thiele and Small Parameters: Resonant Frequency (fs): 122.57Hz. DC Resistance (Re): 5.18. Coil Inductance (Le): 0.43mH. Mechanical Q (Qms): 3.46. Electromagnetic Q (Qes): 0.66. Total Q (Qts): 0.56. Compliance Equivalent Volume (Vas): 3.51 liters / 0.12 cu.ft. Peak Diaphragm Displacement Volume (Vd): 61.05cc. Mechanical Compliance of Suspension (Cms): 0.15mm/N. BL Product (BL): 8.13 T-M. Diaphragm Mass Inc. Airload (MMs): 10.93 grams. Efficiency Bandwidth Product (EBP): 185.4. Maximum Linear Excursion (Xmax): 4.5mm. Surface Area of Cone (Sd): 129.9 cm2. Maximum Mechanical Limit (Xlim): 5.7mm. Mounting Information: Recommended Enclosure Volume. Sealed: 2.38-28317 liters / 0.08-10000 cu.ft. Vented: 5.1-14.16 liters / 0.18-0.5 cu.ft. Driver Volume Displaced: 33.8 cu.in. / 0.6 liters. Overall Diameter: 6.59 167.39mm. Baffle Hole Diameter: 5.69 144.53mm. Front Sealing Gasket: Fitted as standard. Rear Sealing Gasket: Fitted as standard. Mounting Holes Diameter: 0.23 5.84mm. Mounting Holes B.C.D.: 6.06 153.92mm. Depth: 2.66 67.56mm. Materials of Construction: Coil Construction: Aluminum voice coil. Coil Former: Polyimide former. Magnet Composition: Ferrite magnet. Core Details: Vented and extended core. Basket Materials: Pressed steel basket. Cone Composition: Water Resistant Paper. Cone Edge Composition: Treated Cloth cone edge. Dust Cap Composition: Water resistant treated paper dust cap.- SKU: TBALL8833