Blaze Audio BL18S High-Power Passive Subwoofer

The high-power passive subwoofer, BL18S, completes the CBL series from Blaze Audio and is specifically crafted to integrate seamlessly with the CBL523 and CBL528 constant beamwidth loudspeakers, providing a complete full-range audio system that enhances sound quality and performance for small to medium-sized venues that require scalable and versatile low-frequency solutions.

Designed primarily for free-standing installations, the BL18S features an 18-inch bass driver housed in a reflex-loaded enclosure, delivering low-frequency bandwidth down to 31 Hz at -10 dB, with maximum sound pressure levels reaching 136 dB at 1 m. Multiple BL18S subwoofers can be installed in stacked pairs and configured via amplifier presets to deliver either omnidirectional or cardioid directivity characteristics, ensuring exceptional sound distribution.

• High output 2400W passive subwoofer
• Extended low frequency reaching 136dB max SPL
• Baltic birch enclosure

• Frequency Response: (+/-3dB/-10dB)
  • 36 Hz - 150 Hz /
  • 31 Hz - 150 Hz
• Coverage (-6dB)Omni or Cardioid
• Lo-Frequency Drivers
  • Single 18"
  • 4" voice-coil
• Crossover Frequency90 Hz
• Power Handling / Impedance
  • 1200 W AES,
  • 2400 W (4800 W peak) @ 8Ω
• Max SPL @ 1m136 dB
• Recommended Crossover Frequency90 Hz (acoustic, active, external DSP)
• Enclosure Material
  • Baltic birch plywood
  • Engineered plastics
• Finish
  • Two-part spray catalyzed
  • Polyurea coating on plywood
• Grille Material
  • 14-gauge (2 mm) perforated steel,
  • Powder-coated finish, black
• EnvironmentalIndoor use only
• Connectors/Bi-Amp
  • Two (2) parallel-wired NL4 Neutrik®
  • Speakon® connectors
• Suspension/ MountingFreestanding, M20 threaded pole mount
• COOChina
• Physical Unit (H/W/D)22.5 x 24.5 x 30 in
• Net Weight (lbs)131.5

• BL18S subwoofer1
• Casters1
• Document pack1