B 18 WP

Built for the elements. Tuned for bass immersion.

B 18 WP is a weatherised passive subwoofer engineered for permanent outdoor installations where reliable low‑frequency qualitiy and long‑term protection are essential. Pairing marine‑grade construction with an IP‑rated design and installer‑friendly mechanics, it delivers deep, controlled bass and integrates seamlessly with SE outdoor systems such as M3 MAX WP.

All‑weather passive subwoofer engineered for outdoor use (IP 55 rating)
Marine‑grade enclosure with durable coatings and multi‑layer protective grille
Flexible deployment: stackable or flyable with dedicated accessories; secure on‑ground options
Seamless system integration with SE weatherised tops and amplifier presets for fast, consistent results
Available in black and white

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Available in:Africa, Australasia, Caribbean, Central America, East Asia, EU, Europe, Middle East, North America, Oceania, South America, South Asia, Southeast Asia

Outdoor‑grade durability: Marine‑grade materials, robust coatings, and a multi‑layer grille system safeguard performance in challenging weather conditions.

Deep bass with control:A tuned vented design and hydrophobic driver treatment focus energy in the audience area while reducing unwanted artefacts.

Installer‑friendly by design:Weather‑resistant connectivity, neat cable management, and flexible mounting options streamline permanent installs.

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Purpose‑built for open‑air venues, B 18 WP brings SE low‑frequency performance to environments where the weather is part of the brief. Its outdoor‑grade enclosure, protective grille architecture, and water‑smart porting work together to resist dust, rain, and spray while maintaining clean airflow and consistent acoustic behaviour. A robust driver and carefully tuned vented system deliver deep, musical low end with reduced artefacts around tuning, ensuring impact without muddiness.
Integration is straightforward. Dedicated amplifier presets simplify protection and voicing, while the cabinet’s clean industrial design and compact footprint help it blend into architectural surroundings. Connectivity is routed through a weather‑resistant rear panel with sealed cable entry for dependable operation season after season.
For system designers, the B 18 WP supports both stacked and flown configurations via accessories, with provisions that keep ground stacks secure and stable. It partners naturally with M3 MAX WP and other weatherised SE loudspeakers, enabling both straightforward reinforcement and directional low‑frequency arrays. From theme parks and cultural‑tourism theatres to plazas, resort spaces, and open‑air stages, B 18 WP provides even, confident bass coverage with the resilience outdoor installs demand.

Technical details

ACOUSTICAL DATA
Model Name	B 18 WP
Type	18" Passive Weatherproof Subwoofer
Frequency range (-3 dB)*	40 Hz - 130 Hz
Frequency range (-6 dB)*	33 Hz - 150 Hz
Frequency range (-10 dB)*	29 Hz - 160 Hz
Coverage angles (-6 dB) [H x V]	Omnidirectional
Nominal impedance	8 Ω
Sensitivity**	99 dB
Peak power	3200 W
Continuous power***	800 W
Maximum Peak SPL****	140 dB
System type	1-way passive system
Crossover frequency	-
Transducers	1 × 18" driver (4" voice coil)
Enclosure	Vented box
Connectors	Input signal: PG11, wire Diameter Range: 5-10mm
Wiring	PIN1: Positive Terminal (+), PIN2: Negative Terminal (-)
MECHANICAL DATA
Product dimensions [H x W x D]	512x 570 x 793 mm
Net weight	45 kg
Packaging dimensions [H x W x D]	890 x 615 x 701 mm
Total weight	52.2 kg
Cabinet	15 mm Birch board
Cabinet finishing	Black or white polyurea coating
Grille	Powder-coated perforated steel with acoustic waterproof and dust-proof fabric
Hardware	17 x M8 rigging points, 4 rubber feet on the bottom
Stacking	4 stacking grooves on the top
Splay angles	0°
ACCESSORIES
B 18 WP BF	Bumper frame
B 18 WP Mounting/Stacking Kits	Mounting/Stacking Kits
Link cable	Link cable
Gland connector plug	Silicone plug for sealing unused gland connections (diameter: 10 mm, length: 20 mm)
ANNOTATION
*	Measured with a 6th-order Butterworth low-pass filter applied at 130 Hz
**	Half space, 1W / 1m, on axis
***	According to EIA-426B Standard (based on RMS Voltage)
****	Max Peak SPL = Sensitivity + 10log10(Continuous Power) + 12 dB Crest Factor

Product Safety

IMPROPER USE CAN RESULT IN SERIOUS INJURIES TO YOU AND THIRD PARTIES AND OTHER POTENTIAL HEALTH RISKS. ALWAYS FOLLOW THE BASIC PRECAUTIONS OUTLINED IN THE MANUAL TO AVOID THE POSSIBILITY OF SERIOUS INJURY OR EVEN DEATH FROM MECHANICAL PARTS, MECHANICAL MALFUNCTION, FALLING PARTS, DAMAGES, OR INTERACTION WITH DEVICES USED IN COMBINATION, WHICH MAY LEAD TO ELECTRICAL SHOCK, SHORT-CIRCUITING, FIRE, OR OTHER HAZARDS.

THE USE OF LOUDSPEAKER ACCESSORIES AS WELL AS THE ASSEMBLY AND INSTALLATION OF LOUDSPEAKER RIGS AND STACKS AND THE SUSPENSION OF LOUDSPEAKER ARRAYS MAY ONLY BE PERFORMED BY AUTHORIZED, TRAINED AND CERTIFIED PERSONELL.

ALWAYS FOLLOW RULES AND REGULATION FOR RIGGING, HOISTING AND WORK WITH STACKED OR SUSPENDED EQUIPMENT SET BY THE AUTHORITIES, PROFESSIONAL ASSOCIATIONS AND EFFECTIVE STANDARDS.

Packaging:

Cardboard outer packaging (80%) | Foam inner padding (15%) | Plastic protective sleeve (5%)

Hazardous Substances

The following overview contains information on the regulated substances used in the product and on compliance with the applicable limit values.

"Lead (Pb): Used in printed circuit boards (printed circuit board | electronic components on the PCB | internal connecting wires | copper traces) (permitted exemption). "
"Lead (Pb): Used in connectors (electrical connectors) (permitted exemption). "
Mercury (Hg): The content is not detectable or is below the applicable regulatory limits.
Cadmium (Cd): The content is not detectable or is below the applicable regulatory limits.
Hexavalent Chromium (Cr(VI)): The content is not detectable or is below the applicable regulatory limits.
Polybrominated Biphenyls (PBB): The content is not detectable or is below the applicable regulatory limits.
Polybrominated Diphenyl Ethers (PBDE): The content is not detectable or is below the applicable regulatory limits.

Environmental Protection Use Period: 15 year(s)