• 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 1x 18” subwoofer for low-frequency extension down to 29 Hz with mixed mid/high and subwoofer ShowMatch arrays
  • Bose LF18 neodymium 18-inch, high-excursion, 4.5-inch voice coil, transducer provides maximum performance (same transducer as in Bose RMS218)
  • Integrated 4-point “quick pin” rigging allows arrays of up to 18 subwoofers with 10:1 safety factor
  • Front-grill mounted NL4 input, plus rear NL4 inputs, allow easy setup for “reversed box” cardioid arrays

ShowMatch SMS118 Subwoofer

Frequency Range (-10 dB)
29 Hz - 300 Hz

Power Handling, Peak
3000 W per woofer

Sensitivity (SPL / 1 W @ 1 m)
92 dB

Calculated Maximum SPL @ 1 m, peak
Array Position (free field): 127 dB
Ground Stack (half space): 133 dB

Nominal Impedance
4 Ω