Bose Professional ShowMatch SM20 DeltaQ Array Loudspeaker (Each)

The Bose Professional ShowMatch SM20 is a full-range DeltaQ array loudspeaker module designed for high-output sound reinforcement in large-scale venues. It provides 20° nominal vertical coverage and includes field-changeable waveguides that allow system designers to select 70° or 100° horizontal coverage, with optional 120° waveguides available.

This two-way array module requires external power amplifiers and DSP processing to deliver full-range performance from 59 Hz to 18,000 Hz. DeltaQ technology enables variable directivity across the array, delivering consistent coverage, reduced array size, and outstanding vocal clarity across wide seating areas.

The SM20 features a compact, tour-ready enclosure with integrated quick-pin rigging for fast deployment in portable or permanent installations. Removable side rigging guards provide handling protection and can be removed for a reduced width and cleaner visual profile in fixed installs.

Key Features

• DeltaQ Array Technology: Variable directivity for consistent coverage and reduced array size
• Field-Changeable Waveguides: Includes 70° and 100° horizontal coverage options
• High Output Performance: Peak array output up to 145 dB SPL
• Compact, Portable Enclosure: Suitable for touring and permanent installations
• Quick-Pin Rigging System: Supports fast setup with up to 24 modules and a 10:1 safety factor
• Removable Rigging Guards: Integrated handles for transport and touring use

Technical Specifications

Product Type
Full-range DeltaQ array loudspeaker module

Application
Professional sound reinforcement

Coverage, Vertical
20°

Coverage, Horizontal
100° (70° waveguides included)

Frequency Range (-10 dB)
59 Hz – 18,000 Hz

Calculated Maximum SPL @ 1 m
121 dB (low frequency), 125 dB (high frequency) continuous
127 dB (low frequency), 131 dB (high frequency) peak

Nominal Impedance
8 Ω (low frequency)
6 Ω (high frequency)

Power Handling, Long-Term Continuous
450 W (low frequency)
100 W (high frequency)

Power Handling, Peak
1800 W (low frequency)
400 W (high frequency)

Sensitivity (SPL / 1 W @ 1 m)
94 dB (low frequency)
105 dB (high frequency)

Crossover
750 Hz, acoustic (requires active 2-way DSP crossover)

High-Frequency Transducers
4 × Bose Professional EMB2S extended-high frequency neodymium compression drivers, 2 in voice coil

Low-Frequency Transducers
2 × Bose Professional SM8 neodymium 8 in woofers, 3 in voice coil

Enclosure Material
Baltic birch plywood

Grille
16-gauge perforated steel, powder-coated finish

Suspension / Mounting
3-point quick-pin rigging

Color
Black

What's in the Box

(1) ShowMatch SM20 DeltaQ Array Loudspeaker Module
(2) 100° Waveguide Panels
(1) Installation Guide