$278.99 $418.99

Elevate your audio experience with the Sound Town STLF-18X451, an 18-inch low frequency driver designed to bring your music to life. This powerhouse of a driver combines an aluminum frame and a carbon fiber cone, delivering a remarkably smooth response and reducing vibration distortion. Whether you're setting up a home theater system or enhancing a professional audio setup, the STLF-18X451 is the perfect addition.

The STLF-18X451 driver is an incredibly powerful low-frequency driver, capable of 900W RMS and a staggering 1800W program power at 8Ω. Additionally, the STLF-18X451 is equipped with a substantial 4.5-inch voice coil and a hefty 200 oz. magnet. With a frequency response range of 32 Hz to 1 kHz, it provides high power handling and a precise low-frequency response. This ensures that your audio output is not only powerful but also crystal clear. This means that no matter what your music preference is, from the deepest dubstep to the most intricate classical compositions, the STLF-18X451 will deliver the tones you love with exceptional fidelity.

  • SOUND TOWN STLF-18X451 18“ LF DRIVER: The Sound Town STLF-18X451 is an 18-inch low-frequency driver featuring a cast aluminum frame; its lightweight damped carbon fiber cone delivers a remarkably smooth response and reducing vibration distortion
  • POWER HANDLING CAPABILITY: The STLF-18X451 driver boasts a robust power handling capacity, with 900W RMS and 1800W program power at 8Ω, ensuring powerful audio output
  • VOICE COIL AND MAGNET: The woofer is equipped with a substantial 4.5-inch voice coil and a 200 oz. magnet, providing high power handling and precise low-frequency response
  • FREQUENCY RESPONSE: The woofer offers a broad frequency response range from 32 Hz to 1 kHz, catering to a wide spectrum of deep and clear bass tones
Sound Town STLF-18X451 | 18" 900W RMS Cast Aluminum Frame Woofer (Low Frequency Driver) with 4.5" Voice Coil, Replacement Woofer for High-Power PA/DJ Subwoofer - Size and Dimensions Sound Town STLF-18X451 | 18" 900W RMS Cast Aluminum Frame Woofer (Low Frequency Driver) with 4.5" Voice Coil, Replacement Woofer for High-Power PA/DJ Subwoofer - Impedance vs. Freq Graph
Details
Model STLF-18X451 Resonance 32 Hz
Nominal Basket Diameter 17.5" Frequency Response 32 Hz - 1000 kHz
Nominal Impedance 8 Ω Sensitivity 96±3 dB
Power Rating 900W RMS Magnet Weight 200 oz
Peak Power 1800W Peak Voice Coil Diameter 4.5" VC

Thiele & Small Parameters
Resonant Frequency (fs) 35 Hz Mechanical Compliance of Suspension (Cms) 0.094 mm/N
DC Resistance (Re) 5.2 Ω BL Product (BL) 24.65 Tm
Mechanical Q (Qms) 5.047 Diaphragm Mass Inc. Airload (MMs) 214 g
Electromagnetic Q (Qes) 0.408 Surface Area of Cone (Sd) 1232 cm2
Total Q (Qts) 0.378 Maximum Linear Excursion (Xmax) 13 mm
Compliance Equivalent Volume (Vas) 202.7 liters    

Mounting Information
Efficiency Bandwidth Product 85.8 Depth 8.35" (212mm)
Sealed 82.3 liters / 2.9 cu.ft. Baffle Hole Diameter 16.5"(420mm)
Vented 144 liters / 5.08 cu.ft Installation Position Diameter 17.5”(445mm)
Overall Diameter 18.3" (465mm) Mounting Holes Diameter 8-0.31"x 0.43"(8mmx11mm)

Materials of Construction
Coil Construction  Round Copper Cone Composition  Carbon Fiber
Coil Former  GBF Cone Edge Composition  Cloth Edge
Magnet Composition  Ferrite Dust Cap Composition  Carbon Fiber
Basket Materials  Die Cast Aluminum    

 

Dimension & Weight

Product Width (in.) ∅17.5" Package Width (in.) 23.8"
Product Height (in.) --" Package Height (in.) 14.0"
Product Depth (in.) 8.4" Package Depth (in.) 23.8"
Product Weight (lb.) 36.4 lbs Package Weight (lb.) 41.4 lbs 


Warranty/Certifications

Manufacturer Warranty 1 year