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Nominal Basket Diameter 8'', 203mm. Nominal Impedance 8 ohms. Power Rating Watts 225W, Music Program 450W. Resonance 69Hz. Usable Frequency Range 100Hz-3kHz. Sensitivity 97.8. Magnet Weight 59 oz. Gap Height 0.310'', 7.95mm. Voice Coil Diameter 2'', 50.8mm. THIELE & SMALL PARAMETERS Resonant Frequency (fs) 69Hz, DC Resistance (Re) 5.4, Coil Inductance (Le) 0.82mH. Mechanical Q (Qms) 6.43.Electromagnetic Q (Qes)  0.20.Total Q (Qts) 0.22. Compliance Equivalent Volume (Vas) 18.32 liters / .65 cu.ft. Peak Diaphragm Displacement Volume (Vd)  66cc. Mechanical Compliance of Suspension (Cms) 0.35mm/N. BL Product (BL) 14.1 T-M.Diaphram Mass inc. Airload (Mms) 19 grams. Efficiency Bandwidth Product (EBP) 307.Maximum Linear Excursion (Xmax) 3.0mm. Surface Area of Cone (Sd) 218.2 cm2. Maximum Mechanical Limit (Xlim) 8.0mm. MOUNTING INFORMATION Recommended Enclosure  Sealed 8-16 liters / .30-.60 cu.ft. Vented 10-16 liters/.40-.60 cu.ft. Overall Diameter  8.02'', 203.71mm. Baffle Hole Diameter  7.36'', 186.9mm. Front Sealing Gasket fitted as standard. Rear Sealing Gasket fitted as standard. Mounting Holes Diameter 0.28'', 7.1mm. Mounting Holes B.C. D. 8.60'', 218.4mm. Depth 3.75'', 95mm. Net Weight 10.0 lbs, 4.5 kg. Shipping Weight 11 lbs, 4.9 kg. MATERIALS OF CONSTRUCTION Coil Construction Copper voice coil. Coil Former Polyimide former. Magnet Composition  Ferrite magnet. Core Details  Vented and extended core. Basket Materials. die-cast aluminum basket. Cone Composition Paper cone. Cone Edge Composition Cloth cone edge. Dustcap Composition Solid composition paper dust cap

Nominal Basket Diameter 8" , 203.2mm Nominal Impedance* 8 ohms Power Rating Watts 225W Music Program 450W Resonance 65Hz Usable Frequency Range 78Hz-4.5kHz Sensitivity*** 95.1 Magnet Weight 34 oz. Gap Height 0.312", 7.92mm Voice Coil Diameter 2", 50.8mm THIELE & SMALL PARAMETERS Resonant Frequency (fs) 65Hz DC Resistance (Re) 5.99 Coil Inductance (Le) 0.49mH Mechanical Q (Qms) 4.95 Electromagnetic Q (Qes) 0.42 Total Q (Qts) 0.38 Compliance Equivalent Volume (Vas) 23.3 liters / 0.82 cu. ft. Peak Diaphragm Displacement Volume (Vd) 63cc Mechanical Compliance of Suspension (Cms) 0.37mm/N BL Product (BL) 9.6 T-M Diaphram Mass inc. Airload (Mms) 16 grams Efficiency Bandwidth Product (EBP) 156 Maximum Linear Excursion (Xmax) 3.0mm Surface Area of Cone (Sd) 210.0 cm2 Maximum Mechanical Limit (Xlim) 7.4mm MOUNTING INFORMATION Recommended Enclosure Sealed 5.7-9.9 liters/0.2-0.35 cu.ft. Vented 8.5-19 liters/0.3-0.67 cu.ft. Overall Diameter 8.24", 209.2mm Baffle Hole Diameter 7.13", 181mm Front Sealing Gasket fitted as standard Rear Sealing Gasket fitted as standard Mounting Holes Diameter 0.22", 5.5mm Mounting Holes B.C. D. 7.75", 196.9mm Depth 3.5", 89mm Net Weight 6.6 lbs., 3 kg Shipping Weight 7.4 lbs., 3.4 kg MATERIALS OF CONSTRUCTION Coil Construction Aluminum voice coil Coil Former Polyimide former Magnet Composition Ferrite magnet Core Details Vented core Basket Materials Pressed steel basket Cone Composition Paper Cone Cone Edge Composition Cloth cone edge Dustcap Composition Solid composition paper dust cap

Nominal Basket Diameter 8" , 203.2mm Nominal Impedance* 8 ohms Power Rating Watts 125W Music Program 250W Resonance 514Hz Usable Frequency Range 400Hz-4.8kHz Sensitivity*** 100.9 Magnet Weight 20 oz. Gap Height 0.25", 6.35mm Voice Coil Diameter 1.5", 38.1mm THIELE & SMALL PARAMETERS Resonant Frequency (fs) 514Hz DC Resistance (Re) 7.32 Coil Inductance (Le) 0.34mH Mechanical Q (Qms) 4.48 Electromagnetic Q (Qes) 2.08 Total Q (Qts) 1.42 Compliance Equivalent Volume (Vas) 0.8 liters / 0.03 cu.ft. Peak Diaphragm Displacement Volume (Vd) 0cc Mechanical Compliance of Suspension (Cms) 0.01mm/N BL Product (BL) 8.9 T-M Diaphram Mass inc. Airload (Mms) 6.9 grams Efficiency Bandwidth Product (EBP) 247 Maximum Linear Excursion (Xmax) 1.6mm Surface Area of Cone (Sd) 205.9 cm2 Maximum Mechanical Limit (Xlim) 3.0mm MOUNTING INFORMATION Recommended Enclosure Sealed Vented Overall Diameter 8.22", 208.8mm Baffle Hole Diameter 7.19", 182.5mm Front Sealing Gasket fitted as standard Rear Sealing Gasket fitted as standard Mounting Holes Diameter 0.22", 5.5mm Mounting Holes B.C. D. 7.75", 196.9mm Depth 3.25", 83mm Net Weight 4.4 lbs., 2 kg Shipping Weight 5.1 lbs., 2.3 kg MATERIALS OF CONSTRUCTION Coil Construction Copper voice coil Coil Former Polyimide former Magnet Composition Ferrite magnet Core Details Basket Materials Pressed steel basket with closed back Cone Composition Paper Cone Cone Edge Composition Paper cone edge Dustcap Composition Solid composition paper dust cap

Nominal Basket Diameter 8" , 203.2mm Nominal Impedance* 8 ohms Power Rating Watts 125W Music Program 250W Resonance 73Hz Usable Frequency Range 58Hz-5kHz Sensitivity*** 94 Magnet Weight 20 oz. Gap Height 0.25", 6.35mm Voice Coil Diameter 1.5", 38.1mm THIELE & SMALL PARAMETERS Resonant Frequency (fs) 73Hz DC Resistance (Re) 5.3 Coil Inductance (Le) 0.44mH Mechanical Q (Qms) 4.6 Electromagnetic Q (Qes) 0.68 Total Q (Qts) 0.59 Compliance Equivalent Volume (Vas) 17.7 liters / 0.6 cu.ft. Peak Diaphragm Displacement Volume (Vd) 67cc Mechanical Compliance of Suspension (Cms) 0.28mm/N BL Product (BL) 7.8 T-M Diaphram Mass inc. Airload (Mms) 17 grams Efficiency Bandwidth Product (EBP) 107 Maximum Linear Excursion (Xmax) 3.2mm Surface Area of Cone (Sd) 210.0 cm2 Maximum Mechanical Limit (Xlim) 7.1mm MOUNTING INFORMATION Recommended Enclosure Sealed 5-7 liters/0.18-0.25 cu.ft. Vented 16.7-25.5 liters/0.59-0.90 cu.ft. Overall Diameter 8.24", 209.2mm Baffle Hole Diameter 7.13", 181mm Front Sealing Gasket fitted as standard Rear Sealing Gasket fitted as standard Mounting Holes Diameter 0.22", 5.5mm Mounting Holes B.C. D. 7.75", 196.9mm Depth 3.25", 83mm Net Weight 4.3 lbs., 1.9 kg Shipping Weight 5.1 lbs., 2.3 kg MATERIALS OF CONSTRUCTION Coil Construction Copper voice coil Coil Former Polyimide former Magnet Composition Ferrite magnet Core Details Vented core Basket Materials Pressed steel basket Cone Composition Paper Cone Cone Edge Composition Cloth cone edge Dustcap Composition Solid composition paper dust cap