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BL18S

High-power passive subwoofer

  • Dynamic and Versatile: Ideal for both background and foreground music applications.
  • Perfect Integration: Complements the Constant Beamwidth Loudspeakers series, including the CBL523 and CBL528 loudspeakers, to create a complete full-range system.
  • Flexible Installation: Fixed installation with portable capabilities thanks to built-in casters and handles.
  • Adaptable Design: Perfect for hybrid venues, providing a single sub solution for multiple applications.
  • Value-Driven Solution: Offers professional performance at a competitive price point.
  • Fully integrates with Blaze Audio’s PowerZone™ Connect amplifiers (3004 or higher).
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
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18" woofer, 4” voice coil

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Rear-panel: Optional casters

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Reflex tuned ports

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Ergonomic handles

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Upper panel: M20 pole fitting

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.

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.

Product Data

Additional information

Frequency Response (-3 dB)*

36 Hz – 150 Hz

Frequency Range (-10 dB)*

31 Hz – 150 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”
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

*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.

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