STLF-21120 | 21" Raw Woofer Speaker, 600 Watts Pro Audio PA DJ Replacement Subwoofer Low Frequency Driver
Sound Town
- DESCRIPTION
- FEATURES
- SPECIFICATIONS
- DOWNLOAD
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DESCRIPTION
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.
FEATURES
- 21” pressed steel frame
- 4” voice coil and 90-oz magnet produce superb sound
- 600W RMS power handling capability
SPECIFICATIONS
Details
| Model | STLF-21120 | Resonance | 36Hz |
| Nominal Basket Diameter | 21" | Frequency Response |
36Hz-2KHz |
| Nominal Impedance | 8Ω | 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 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 | 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 |
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