$379.99

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.

  • 21” cast aluminum frame
  • 5” voice coil and 200-oz  magnet produces superb bass sound
  • 1000W RMS power handling capability

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

Sound Town STLF-21500A 21" Cast Aluminum Frame High-Power Raw Woofer Speaker, 1000 Watts Pro Audio PA DJ Replacement Subwoofer Low Frequency Driver - SPL vs. Frequency Graph

Details

Model STLF-21500A Resonance 32Hz
Nominal Basket Diameter 21" Frequency Response
32Hz-800Hz
Nominal Impedance 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 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 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


Customer Reviews

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