21″ 4000 Watts High Output Woofer – PROFILE21

21″ 4000 Watts High Output Woofer – PROFILE21

The BlastKing Profile series brings high output, low frequency woofers in 12”, 15”, 18” and 21” options. These transducers are capable of very low frequencies and are intended for use in a reflex or horn loaded cabinets. They are all made in a high-quality die cast aluminum frame and boast a heavy-duty ferrite magnet that allows for increased power ratings. The Profile transducers are perfect for those needing high level, low frequency output transducers with very low distortion.

Product Description


  • 5” Voice Coil
  • 4000 Watts Program Power
  • 97.2 dB sensitivity
  • 32 Hz – 1500 Hz frequency response
  • Forced air ventilation


General Specifications
Basket Diameter533 mm / 21 inch
Rated Impedance8 ohm
Rated Power Handling2000 Watts
Program Power4000 Watts
Sensitivity97.2 dB
Frequency Range32-1500 Hz
Magnet Weight200 Oz
Magnet CompositionFerrite Magnet
Voice Coil Diameter127 mm / 5 inch
Voice Coil MaterialFiberglass
Voice Coil Length25 mm/ 1 inch
Basket MaterialsAluminum
Shipping Information
Net Weight22.8 Kg/ 50.3 Lbs

Additional Information

Woofer Size


Replacement Speaker Series



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