Bose Professional ShowMatch SMS118 DeltaQ Array Subwoofer (omnidirectional coverage, 127 dB SPL, array and ground-stack applications)
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Bose Professional ShowMatch SMS118 DeltaQ Array Subwoofer
A 1x18" subwoofer designed for integration with DeltaQ arrays; features low-frequency extension down to 29 Hz, integrated rigging, and a pole-cup adapter.
DeltaQ Technology
With selectable coverage patterns, it directs sound more precisely to listener areas, providing improved sound quality and clarity with fewer modules.
29 Hz Low Frequency
A 1x18" subwoofer designed to extend the low-frequency response down to 29 Hz when combined with ShowMatch arrays.
Bose LF18 Woofer
Bose Professional LF18 neodymium 18-inch high-excursion woofer; features a 4.5-inch voice coil and the same transducer as the RMS218.
Integrated Rigging and Mounting
Integrated 4-point quick-pin rigging, M10 inserts, and M20 pole socket; removable side panels provide flexibility for portability and fixed installations.
Technical Specifications
Speaker Type : DeltaQ array subwoofer
Usage : DeltaQ array integration, ground stack, portable applications, and fixed installations
Mounting Type : Integrated 4-point quick-pin rigging; 4x M10 top and 4x M10 bottom inserts; M20 pole socket; integrated pole-cup adapter
Coverage Angle : omni (in cardioid array configurations)
Maximum SPL : Calculated Max. SPL @1 m: 121 dB (array) · 127 dB (ground stack); AES test calculated: 123 dB (array) · 129 dB (ground stack). Calculated peak values: 127–135 dB
Sound Pressure (1W/1m) : 92 dB (array) · 98 dB (ground stack)
Frequency Response : 32 – 250 Hz (-3 dB); 29 – 300 Hz (-10 dB)
Power Handling (AES / Peak) : Long-term continuous: 750 W (Extended-lifecycle) · 1250 W (AES); Peak power: 3000 W (Extended) · 5000 W (AES)
Woofer : 1 x Bose Professional LF18 neodymium 18-inch, high-excursion woofer (4.5-inch voice coil)
Impedance : 4 ohm
Crossover : 60–100 Hz (requires active crossover in DSP)
Connection Type : Parallel-wired configuration with NL4 inputs; 1x NL4 front, 2x NL4 rear
Connector : 2 x Neutrik NL4 rear, 1 x Neutrik NL4 front grille; all wired in parallel
Water/Dust Resistance (IP) : IPx4
Dimensions (Diameter / Depth) : 21.2” x 30.1” x 30.5” (540 x 765 x 775 mm); Width (with side panels removed): 29.8” (757 mm)
Mounting Aperture : 4-point quick-pin rigging; 4x M10 top and 4x M10 bottom inserts; M20 pole socket
Weight : Net: 136.5 lbs (61.9 kg); Shipping: 145 lbs (65.8 kg)
Shipping & Return Terms
Fast Shipping: 24-hour delivery within North Cyprus · 3–5 business days between Türkiye and North Cyprus
Returns: 14-day no-questions-asked returns · In original packaging, unused
Warranty: All products are distributor approved and carry a 24-month warranty.
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