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 31Hz at -10 dB, with maximum sound pressure levels reaching 136dB 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 amplifiers, starting at 3000 W, and 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**
2400 W (4800 W peak)
Impedance
8 O
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
M10 x 4, projector mount, two-position pole mount
Dimensions (HxWxD)
22.5” x 24.5” x 30”
571,5 x 622,3 x 762 mm
Net Weight
131.5 lbs / 59,65 kg
Shipping Weight
147 lbs / 66,69 kg
Color Variants
Black