High-power passive subwoofer
Frequency Response (-3 dB) | 36 Hz - 150 Hz |
Frequency Range (-10 dB) | 31 Hz - 150 Hz |
Recommended Low-Pass Filter | 90 Hz |
Nominal Directivity (-6dB) | Omni or cardioid |
Long Term Power Handling Capacity | 1200 W AES, 2400 W Program (4800 W peak) |
Max SPL @ 1 W / 1 m | 136 dB |
Transducer Components | 1 x 18 inch, 4” voice-coil |
Dimensions (HxWxD) | 22.5” x 24.5” x 30” 571.5 x 622.3 x 762 mm |
Weight | 131.5 lbs | 59.65 kg |
18" woofer, 4” voice coil
Rear-panel: Optional casters
Reflex tuned ports
Ergonomic handles
Upper panel: M20 pole fitting
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.
For optimal performance, the BL18S should be driven solely by Blaze Audio’s PowerZone™ Connect amplifier 3004 or higher, with the appropriate speaker presets configured.
Multiple BL18S subwoofers can be installed in arrays and configured via amplifier presets to deliver either omnidirectional or cardioid directivity characteristics, ensuring exceptional sound distribution.
For added convenience, the BL18S comes equipped with optional casters that can be fitted to the rear panel, facilitating easy handling and installation in hybrid venues.
Frequency Response (-3 dB)* | 36 Hz – 150 Hz |
---|---|
Frequency Range (-10 dB)* | 31 Hz – 150 Hz |
Recommended Low-Pass Filter | 90 Hz |
Nominal Directivity (-6 dB) | Omnidirectional or cardioid |
Long Term Power Handling Capacity** | 1200 W AES, 2400 W Program (4800 W peak) |
Impedance | 8 Ω |
Maximum SPL @ 1m*** | 136 dB |
Transducer Components | 1 x 18" woofer, 4” voice-coil |
Enclosure | Baltic birch plywood, engineered plastics |
Finish | Two-part spray catalyzed Polyurea coating on plywood |
Grille | 14-gauge (2 mm) perforated steel, powder-coated finish, black |
Environmental | Indoor use only |
Connectors / Bi-Amp | Two (2) parallel-wired NL4 Neutrik® speakON® connectors |
Suspension / Mounting | Freestanding, M20 threaded pole mount |
Dimensions (HxWxD) | 22.5” x 24.5” x 30” |
Net Weight | 131.5 lbs / 59,65 kg |
Shipping Weight | 147 lbs / 66,69 kg |
Color Variants | Black |
*Frequency response and range measured on-axis with anechoic environment.
**Power handling tested using pink noise filtered to meet IEC 268-5, 6 dB crest factor, 100 hours, with recommended EQ.
**Peak level measured at 1 m under free field conditions using 10 dB crest factor pink noise with specified Blaze Audio preset and corresponding EQ settings.
Subscribe now for exclusive updates on new product releases, firmware updates, case studies, and events.