AVSL Group
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CLB active subwoofers deliver extraordinary performance in a compact size. Featuring a built-in class D amplifier with a high power die cast aluminium low frequency driver. Suitable for both portable and installation uses in applications such as sound reinforcement in places of worship, events, clubs, rehearsal halls and ballrooms etc.

  • Class D amplifier module with built-in protection
  • Master volume control
  • Built in variable crossover 40Hz -150Hz
  • Phase switch 0┬░/180┬░
  • Ground Lift Switch
  • Dado jointed 18mm MDF construction
  • Direct radiating reflex cabinet
  • Suitable for use with any full range or mid/high speaker cabinets for extended low frequency
  • Integrated 35mm top pole-mount
  • Heavy duty powder coated metal grille
LF driver : size 380mm (15")
LF driver : coil size 76mm (3")
LF driver : frame material Die-cast aluminium frame
Output power : rms 500W
Frequency response : -3dB 35Hz - 180Hz
Crossover frequency 40Hz - 150Hz
Sensitivity @ 1W/1m 105dB
Maximum SPL 129dB
THD <1%
Dimensions 510 x 595 x 655mm
Weight 34kg
Power supply 220-240Vac, 50Hz (IEC)
Connections 2 x 6.3mm jack/XLR combo inputs and 2 x XLR outputs
Impedance 4 ohms
Stock Code Description Packed
178.273UK CLB15A 15" active subwoofer Box

Discontinued versions - The following items are no longer available:

Stock Code Description Alternative
178.271UK CLB12A 12" active subwoofer 178.276UK

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