STLF-21120-R | REFURBISHED: 21" Raw Woofer Speaker, 600 Watts Pro Audio PA DJ Replacement Subwoofer Low Frequency Driver
Sound Town
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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-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
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 | 180 Days (6 Months) |
