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.