Bose Professional ShowMatch SMS118 subwoofers are designed primarily to integrate with DeltaQ array loudspeakers and extend low-frequency response down to 29 Hz. The SMS118 enclosure width and integrated rigging allows fast integration in arrays with ShowMatch full-range modules using optional array frames and accessories. The portable-rated Baltic birch enclosure may also be used for ground-stack applications and includes an integrated mounting-pole adapter for use with other mid/high loudspeakers.
FEATURES
DeltaQ technology is the next-generation array design that allows “Q” (directivity) to vary with each module in the array for more consistent coverage over wide frequency range, reduced array weight and cost, and outstanding vocal clarity. Arrays can cover large vertical angles with fewer boxes.
ShowMatch DeltaQ companion 1 × 18-inch subwoofer for low-frequency extension down to 29 Hz with mixed mid/high and subwoofer ShowMatch arrays.
Bose Professional LF18 neodymium 18-inch, high-excursion, 4.5-inch voice coil, transducer provides maximum performance (same transducer as in Bose Professional RMS218).
Integrated 4-point “quick pin” rigging allows arrays of up to 18 subwoofers with 10:1 safety factor.
Front-grille mounted NL4 input, plus rear NL4 inputs, allow easy setup for “reversed box” cardioid arrays.
Applications
Designed for a wide range of applications, including:
- Theaters
- Houses of worship
- Auditoriums
- Performing arts venues
- Arenas
SPECS
Technical Specification
COMPLIANCE
PHYSICAL
Enclosure Material
Baltic birch plywood
Net Weight
136.5 lb (61.9 kg)
PERFORMANCE
Frequency Range (-10 dB)
29 Hz – 300 Hz
Coverage, Horizontal
Omnidirectional
Calculated Maximum SPL @ 1 m
121 dB (free field/array), 127 dB (half-space/ground stack) continuous / 127 dB (free field/array), 133 dB (half-space/ground stack) peak
Power Handling, Peak
3000 W
Coverage, Vertical
Omnidirectional
TRANSDUCERS
Mechanical Diagrams

front-view

top-view

side-view

rear-view

bottom-view
Product codes
- 734302-0110
- ShowMatch SMS118
Warranty Period
Included in Packaging
DOWNLOADS
Technical Information
Latest Software
User Documentation
Mechanical Files
Loudspeaker Files
DSP Files
Compliance Documents
Product Images