STLF-21500A | 21" Cast Aluminum Frame High-Power Raw Woofer Speaker, 1000 Watts Pro Audio PA DJ Replacement Subwoofer Low Frequency Driver

The Sound Town STLF-21500A is a 21” replacement driver for high power subwoofer cabinets. It is compatible with Sound Town subwoofers and compatible with other brand speakers with a 21” high power subwoofer. The subwoofer comes with an 8-ohm impedance and has a frequency range of 32-2K Hz with a sensitivity of 108dB. It has a built-in cast aluminum chassis with 5” voice coil and 200 oz magnet. It has a paper cone with cloth edge. With 1000W RMS power handling capability, the STLF-21500A delivers a massive and deep bass and makes a great replacement woofer for your 21-inch high power subwoofer cabinets. FEATURES 21” cast aluminum frame 5” voice coil and 200-oz  magnet produces superb bass sound 1000W RMS power handling capability SPECIFICATIONS Details Model STLF-21500A Resonance 32Hz Nominal Basket Diameter 21" Frequency Response 32Hz-800Hz Nominal Impedance 8Ω Sensitivity 96±3dB Power Rating 1000W RMS Magnet Weight 200 OZ Peak Power 2000W Peak Voice Coil Diameter 5.0" VC Thiele & Small Parameters Resonant Frequency (fs) 32Hz Compliance Equivalent Volume (Vas) 1567 Ltr DC Resistance (Re) 7.4Ω Mechanical Compliance of Suspension (Cms) 354.5 u m/N Mechanical Q (Qms) 1.069 BL Product (BL) 20.1 Tm Electromagnetic Q (Qes) 0.348 Diaphragm Mass Inc. Airload (MMs) 165.0 g Total Q (Qts) 0.262 Surface Area of Cone (Sd) 1765  cm2 Mounting Information Overall Diameter 21.3", 542 mm Mounting Holes Diameter 8-0.275", 8-7 mm Depth 9.4", 236 mm Net Weight 43.1 lbs, 19.6 kg Baffle Hole Diameter 19.3", 491 mm Shipping Weight 46.4 lbs, 21.1 kg Installation Position Diameter 20.5", 520 mm     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.) ∅21.3" Package Width (in.) 23.8" Product Height (in.) --" Package Height (in.) 11.6" Product Depth (in.) 9.3" Package Depth (in.) 23.6" Product Weight (lb.) 43.1 lbs Package Weight (lb.) 46.4 lbs Warranty/Certifications Manufacturer Warranty 1 year DOWNLOAD STLF-21500A Brochures