STLF-1504-4 | 15" 450W Raw Woofer Speaker with 4" Voice Coil, 100 oz Magnet, Replacement Woofer for PA/DJ Subwoofer, 4-ohm

The Sound Town STLF-1504-4 is a 15" universal replacement woofer for PA/DJ speakers; it is compatible with the Sound Town PA subwoofers and subwoofers of other brands which need a 15" low-frequency driver. The woofer comes with 4-ohm impedance and has a frequency range of 35 Hz - 2 kHz. It is built in a pressed steel chassis and has a paper cone with cloth edge. With 450W RMS, 900W program power handling capability, the STLF-1504-4 delivers massive and deep bass and makes a great replacement woofer for your 15-inch PA subwoofers. FEATURES 15" pressed steel frame 450W RMS, 900W program power handling at 4-ohm 35 Hz - 2 kHz frequency response 4“ voice coil and one 100 oz magnet produces super sound SPECIFICATIONS Details Model STLF-1504-4 Resonance 35Hz Nominal Basket Diameter 15" Frequency Response 35Hz - 2kHz Nominal Impedance 4Ω Sensitivity 98±3dB Power Rating 450W RMS Magnet Weight 100oz Program Power 900W Program Voice Coil Diameter 4" VC Thiele & Small Parameters Resonant Frequency (fs) 33Hz Compliance Equivalent Volume (Vas) 478.53 liters DC Resistance (Re) 3.8Ω Mechanical Compliance of Suspension (Cms) 0.434 mm/N Mechanical Q (Qms) 1.336 BL Product (BL) 14.39 Tm Electromagnetic Q (Qes) 0.244 Diaphragm Mass Inc. Airload (MMs) 76.86 g Total Q (Qts) 0.206 Surface Area of Cone (Sd) 881 cm2 Mounting Information Efficiency Bandwidth 113 Baffle Hole Diameter 13.7", 348mm Sealed 46.3 liters / 1.635 cu.ft. Installation Position Diameter 14.8", 376mm Vented 71.53 liters / 2.53 cu.ft. Mounting Holes Diameter 8-0.24"x0.35", 6x9mm Overall Diameter 15.2", 386mm Net Weight 18.88lbs, 8.58kg Depth 7.13", 181.1mm 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 Steel     Dimension & Weight Product Width (in.) ∅15.2" Package Width (in.) 16.3" Product Height (in.) --" Package Height (in.) 16.3" Product Depth (in.) 7.1" Package Depth (in.) 8.9" Product Weight (lb.) 18.9 lbs Package Weight (lb.) 22.8 lbs   Warranty/Certifications Manufacturer Warranty 1 year