$189.99 $219.99

The Sound Town STLF-21120 comes a 21” universal replacement driver for PA/DJ woofers; it is compatible with the Sound Town PA speakers (subwoofer) and speakers of other brand which need a 21” subwoofer as well. The subwoofer comes with 8-ohm impedance and has a frequency range of 32-2K Hz. Sensitivity is 97dB. It is built in a pressed steel chassis and has a paper cone with cloth edge. With 600W RMS power handling capability, the STLF-21120 delivers massive and deep bass and makes a great replacement woofer for your 21-inch PA/DJ speakers or subwoofer cabinet.

  • 21” pressed steel frame
  • 4” voice coil and 90-oz magnet produce superb sound
  • 600W RMS power handling capability

Sound Town STLF-21120 21" Raw Woofer Speaker, 600 Watts Pro Audio PA DJ Replacement Subwoofer Low Frequency Driver - Size Dimensions

Sound Town STLF-21120 21" Raw Woofer Speaker, 600 Watts Pro Audio PA DJ Replacement Subwoofer Low Frequency Driver - SPL vs. Frequency Graph

Details

Model STLF-21120 Resonance 36Hz
Nominal Basket Diameter 21" Frequency Response
36Hz-2KHz
Nominal Impedance Sensitivity 98±3dB
Power Rating
600W RMS Magnet Weight 120 OZ
Peak Power 1200W Peak Voice Coil Diameter 4.0" VC


Thiele & Small Parameters

Resonant Frequency (fs) 36Hz Compliance Equivalent Volume (Vas) 340 Ltr
DC Resistance (Re) 7.2Ω Mechanical Compliance of Suspension (Cms) 67.25 mm/N
Mechanical Q (Qms) 1.66 BL Product (BL) 25.63 Tm
Electromagnetic Q (Qes) 0.710 Diaphragm Mass Inc. Airload (MMs) 282.2 g
Total Q (Qts) 0.5 Surface Area of Cone (Sd) 1886 cm2


Mounting Information

Overall Diameter 21.2", 540 mm Mounting Holes Diameter 8-0.24"x0.31", 8-6x8 mm
Depth 8.8", 223 mm Net Weight 25.5 lbs, 11.6 kg
Baffle Hole Diameter 19.6", 498mm Shipping Weight 28.6 lbs, 13.0 kg
Installation Position Diameter 20.5", 522mm    


Materials of Contruction

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 Pressed Steel    


Dimension & Weight

Product Width (in.) ∅21.0" Package Width (in.) 22.8"
Product Height (in.) --" Package Height (in.) 11.2"
Product Depth (in.) 8.6" Package Depth (in.) 23.0"
Product Weight (lb.) 25.5 lbs Package Weight (lb.) 28.6 lbs

 

Warranty/Certifications

Manufacturer Warranty 1 year


Customer Reviews

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