The Sound Town STLF-08GA-PAIR includes two STLF-08GA woofers. The STLF-08GA is an 8" universal replacement driver for PA/DJ speakers and bass guitar cabinets. It is compatible with the Sound Town PA speakers and speakers of the other brands which need 8" low-frequency drivers. The woofer has an 8-ohm impedance and a frequency range of 70 Hz - 5 kHz. It comes with a cast aluminum chassis and a paper cone with cloth edge. With 150W RMS, 300W peak power handling capability, the STLF-08GA delivers massive, punchy bass and makes a great replacement woofer for your 8-inch PA speakers and bass guitar cabinets. FEATURES Two 8" cast aluminum frame woofers 150W RMS, 300W peak power handling capacity at 8-ohm 2" voice coil, 30 oz magnet 70 Hz - 5 kHz frequency response Sensitivity: 92 dB SPECIFICATIONS Details Model STLF-08GA Resonance 70 Hz Nominal Basket Diameter 8" Usable Frequency Range 70 Hz-5K Hz Nominal Impedance* 8Ω Sensitivity* 92±3 dB RMS Power 150W Magnet Weight 30 OZ Peak Power 300W Voice Coil Diameter 2.0" Thiele & Small Parameters Resonant Frequency (fs) 82 Hz Compliance Equivalent Volume (Vas) 10.01Ltr DC Resistance (Re) 6.3Ω Mechanical Compliance of Suspension (Cms) 0.150 mm/N Mechanical Q (Qms) 2.903 BL Product (BL) 9.74 T-M Electromagnetic Q (Qes) 0.841 Diaphragm Mass Inc. Airload (MMs) 26.685 g Total Q (Qts) 0.652 Surface Area of Cone (Sd) 216 cm2 Mounting Information Efficiency bandwidth product 98 Baffle Hole Diameter 7.24",184 mm Sealed 25.6 liters / 0.9 cu.ft. Installation Position Diameter 7.76", 197 mm Vented 32.3 liters / 11.4 cu.ft Mounting Holes Diameter 4-0.216", 5.5 mm Overall Diameter 8.23", 209 mm Net Weight 5.3 lbs, 2.3 kg Depth 3.88", 98.6 mm Shipping Weight Materials of Construction Coil Construction Round copper Cone Composition Paper Cone Coil Former Aluminum Cone Edge Composition Cloth Edge Magnet Composition Ferrite Dust Cap Composition Paper Cap Basket Materials Die Cast Aluminum Dimension & Weight Product Width (in.) ∅8.2" (each) Package Width (in.) 10.7" Product Height (in.) --" Package Height (in.) 12.8" Product Depth (in.) 3.9" (each) Package Depth (in.) 9.9" Product Weight (lb.) 5.3 lbs (each) Package Weight (lb.) 12.8 lbs Warranty/Certifications Manufacturer Warranty 1 Year DOWNLOAD STLF-08GA Brochure