STLF-1804-4-R | REFURBISHED: 18" 800W Raw Woofer Speaker with 4" Voice Coil, 100 oz Magnet, Replacement for PA/DJ Subwoofer, 4-ohm

Refurbished Condition: 100% testing and function is in good condition while outside box worn out and small cosmetic dents. cosmetic damages will vary, including but not limited to, damaged or cracked, bent ears, scratches, dents, etc. The Sound Town STLF-1804-4 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 4-ohm impedance and has a frequency range of 34 Hz - 2 kHz. It is built in a pressed steel chassis and has a paper cone with cloth edge. With 800W RMS, 1600W program power handling capability, the STLF-1804-4 delivers massive and deep bass and makes a great replacement woofer for your 18-inch PA subwoofers. FEATURES Extra large 4“ ASV high temperature voice coil provides high SPL with low distortion. 18-inches pressed steel chassis with paper cone and cloth edge delivers massive and deep bass sound. 100oz Y35 ferrite magnet provides high sensitivity (100+-2dB). Durable connex dual spider system provides better damping to improve the efficiency of the raw speaker. 800W RMS, 1600W program power handling at 4-ohm 34 Hz - 2 kHz frequency response SPECIFICATIONS Details Model STLF-1804-4 Resonance 34Hz Nominal Basket Diameter 18" Frequency Response 34Hz - 2kHz Nominal Impedance 4Ω Sensitivity 98dB Power Rating 800W RMS Magnet Weight 100oz Program Power 1600W Program Voice Coil Diameter 4" VC Thiele & Small Parameters Resonant Frequency (fs) 34Hz Compliance Equivalent Volume (Vas) 161.63 liters DC Resistance (Re) 3.6Ω Mechanical Compliance of Suspension (Cms) 0.069 mm/N Mechanical Q (Qms) 3.201 BL Product (BL) 16.855 Tm Electromagnetic Q (Qes) 0.755 Diaphragm Mass Inc. Airload (MMs) 243.73 g Total Q (Qts) 0.611 Surface Area of Cone (Sd) 1288 cm2 Mounting Information Efficiency Bandwidth 51 Baffle Hole Diameter 16.5", 420mm Sealed 367.3 liters / 12.96 cu.ft. Installation Position Diameter 17.6", 448mm Vented 489.8 liters / 17.26 cu.ft. Mounting Holes Diameter 8-0.24"x0.35", 6x9mm Overall Diameter 18.0", 458mm Net Weight 20.8lbs, 9.34kg Depth 7.52", 191mm 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.) ∅18.0" Package Width (in.) 19.3" Product Height (in.) 7.5" Package Height (in.) 9.3" Product Depth (in.) --" Package Depth (in.) 19.3" Product Weight (lb.) 20.8 lbs Package Weight (lb.) 25.5 lbs   Warranty/Certifications Manufacturer Warranty 180 Days (6 Months)