The Sound Town STLF-18AS is a 18" universal replacement woofer for PA/DJ speakers; it is compatible with the Sound Town PA subwoofers and subwoofers of other brands which need a 18" low-frequency driver. The woofer comes with 8-ohm impedance and has a frequency range of 32 Hz - 2 kHz. It is built in a cast aluminum chassis and has a paper cone with cloth edge. With 750W RMS, 1500W peak power handling capability, the STLF-18AS delivers massive and deep bass and makes a great replacement woofer for your 18-inch PA subwoofers. FEATURES 18" cast aluminum frame 750W RMS, 1500W peak power handling at 8-ohm 32 Hz - 800 Hz frequency response 4" voice coil and one 145 oz. magnet produces super sound SPECIFICATIONS Details Model STLF-18AS Resonance 32Hz Nominal Basket Diameter 18" Frequency Response 32Hz - 800Hz Nominal Impedance 8Ω Sensitivity 100±3dB Power Rating 750W RMS Magnet Weight 145oz Peak Power 1500W Peak Voice Coil Diameter 4" VC Thiele & Small Parameters Resonant Frequency (fs) 30.3Hz Compliance Equivalent Volume (Vas) 245.2 liters DC Resistance (Re) 4.8Ω Mechanical Compliance of Suspension (Cms) 0.114 mm/N Mechanical Q (Qms) 11.61 BL Product (BL) 27.1 Tm Electromagnetic Q (Qes) 0.347 Diaphragm Mass Inc. Airload (MMs) 242.37 g Total Q (Qts) 0.337 Surface Area of Cone (Sd) 1232 cm2 Mounting Information Efficiency Bandwidth 87 Baffle Hole Diameter 16.55", 420mm Sealed 73.86 liters / 2.61 cu.ft. Installation Position Diameter 17.32", 440mm Vented 209.5 liters / 7.40 cu.ft. Mounting Holes Diameter 8-0.31" x 0.39", 8mm x 10mm Overall Diameter 18.3", 462mm Net Weight 33.66lbs, 15.3kg Depth 8.64", 219.5mm Materials of Construction Coil Construction Round copper Cone Composition Paper cone Coil Former TIL Cone Edge Composition Cloth edge Magnet Composition Ferrite Dust Cap Composition Paper cap Basket Materials Die Cast Aluminum Dimension & Weight Product Width (in.) ∅18.3" Package Width (in.) 20.7" Product Height (in.) 8.6" Package Height (in.) 11.9" Product Depth (in.) --" Package Depth (in.) 20.7" Product Weight (lb.) 33.7 lbs Package Weight (lb.) 40.0 lbs Warranty/Certifications Manufacturer Warranty 1 year
