Subwoofer Speaker
Powerful Subwoofer Dual 18 inch Hybrid Horn Reflex Loading
Item No.: S-218H
Maximum SPL: 148dB peak
Nominal Impedance: 4Ω
Frequency Response：32Hz-150Hz ±3dB
Connectors：2 x NL4
Nominal Impedance: 4Ω
Frequency Response：32Hz-150Hz ±3dB
Connectors：2 x NL4
Description
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S-218H Dual 18-inch Subwoofer
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Type
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Hybrid horn/reflex subwoofer
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Frequency Response
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32Hz-150Hz ±3dB, -10dB @ 27Hz
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Driver
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2 x 18” (460mm)/4.5” (115mm) voice coil, long excursion, neodymium magnet, waterproof cone
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Rated Power
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3000W AES, 12000W peak
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Sensitivity
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107dB
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Maximum SPL
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142dB continuous, 148dB peak, 154dB peak with crest factor 4
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Nominal Impedance
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4 ohms
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Dispersion (-6dB)
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Omnidirectional
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Enclosure
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Multi-laminate birch/18mm plywood
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Finish
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Black textured paint
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Protective Grille
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Black perforated steel
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Connectors
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2 x NL4
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Fittings
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Two skids on base, matching channels on top.4 x bar handles
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Four rear-mounted 100mm (4in) castors
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4 x fittings for optional transit cover
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Dimensions
(INCL FEET) |
(W) 1112mm x (H) 607mm x (D) 1013mm (1140mm including castors)
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(W) 43.8in x (H) 23.9in x (D) 39.9in (44.9in including castors)
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Weight
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124kg (273lbs)
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| Powerful Subwoofer: |
| The S-218H is a high-output subwoofer capable of producing up to 148dB peak output at 1 meter. |
| It is suitable for applications requiring maximum low-frequency output, such as Wavefront Precision WL12 arrays and premium permanent installations like nightclubs. |
| Hybrid Technology: |
| The subwoofer uses Hybrid horn/reflex loading, combining the efficiency of bass horn technology with the low-frequency extension of a reflex design. |
| This design allows it to produce significantly higher output levels than traditional reflex-loaded subwoofers. |
| Operating Range and Drivers: |
| It operates within a frequency range of 32-150Hz ±3dB. |
| Features dual long-excursion 18” (460mm) drivers with 4.5” (115mm) voice coils, water-resistant cones, and triple roll surrounds. |
| Durable Construction: |
| The enclosure is made from multi-laminate plywood and coated with hardwearing textured black polyurea. |
| A rigid perforated steel grille protects the front, while interlocking skids protect the top and bottom surfaces and prevent movement when stacked. |
| Weather Resistance: |
| The subwoofer can be made fully weather-resistant with an input board cover accessory, making it suitable for permanent outdoor use. |
| Unique Wiring Configuration: |
| Features a unique wiring configuration that reverses connections to the NL4 labeled ‘LINK’. |
| This configuration ensures each subwoofer is driven by one amplifier channel, avoiding load impedances of less than 4Ω. |
| Optional Transit Cover: |
| An optional transit cover is available to protect the cabinet during portable applications. |
| Four locating brackets built into the cabinet corners need to be reversed to use the transit cover. |
Related Product
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| WL12 Dual 12 inch line array | WX18 Single 18 inch Subwoofer |