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With coaxial two-way drivers, the 150-watt Bose Professional DesignMax DM8C loudspeaker delivers powerful SPL suitable for foreground music — along with premium aesthetics that complement any commercial sound installation. The DM8C features a two-way, 8-inch woofer and a center-firing coaxial 1-inch compression driver, delivering a 52 Hz – 20 kHz frequency range. The in-ceiling DM8C is installed easily via QuickHold mounting arms.
Combine DesignMax models to complete any design, big or small — 12 loudspeakers to mix and match, from 2-inch, low-profile models to 8-inch, high-SPL compression-driver loudspeakers and outdoor-rated options
Deliver rich lows and clear, intelligible highs with coaxial two-way drivers — no DSP or EQ required. For even better sound, use select Bose Professional DSPs and amplifiers to enable Bose Professional loudspeaker EQ and SmartBass processing, which expands performance and response at any listening level
Blend with any room design with elegant form factors, minimum-bezel grilles available in black or white, and removable logos
Reduce installation time with the patented QuickHold mounting system, which also reduces strain, hassle, and the chance of product damage
Install easily with industry-standard accessories — all models include Euroblock connectors; in-ceiling models include plenum-rated backcans, tile bridges, and front-access audio wiring that makes installation and troubleshooting easier
Deliver high SPL for demanding applications, including high-ceiling venues such as ballrooms, concourse, and convention centers
Designed for a wide range of applications, including:
Performing arts venues
Places of worship
Conference centers
Retail stores
Restaurants and bars
Hospitality venues
Environmental
Indoor only
Colors
Black (RAL 9005), white (RAL 9003), paintable
Ceiling Cutout
13.8 in (349 mm)
Enclosure Material
Engineered-plastics front baffle with integrated steel-formed backcan
Grille
Magnetically attached perforated steel, powder-coated finish, paintable, with safety tether
Logo
Rotatable, removable
Suspension/Mounting
(3) QuickHold spring-loaded mounting arms, (3) safety cable attachment points
Net Weight
21.1 lb (9.6 kg), loudspeaker with grille / 2.2 lb (1.0 kg), tile bridge
Operating Temperature Range
0 °C to 50 °C (32 °F to 122 °F)
Product Dimensions (H×W×D)
16.1 in × 10.0 in (409 mm × 255 mm), loudspeaker diameter × depth / 13.4 in × 9.5 in (340 mm × 240 mm), backcan diameter × depth
Shipping Weight
28.0 lb (12.7 kg), single
Safety Agency Ratings
UL-1480A, S5591/ UL Listed, in compliance with UL2043 for plenum-space installation, NFPA70 & NFPA90-A, CE compliant
Frequency Range (-10 dB)
52 Hz – 20,000 Hz
Coverage, Horizontal
135° conical
Calculated Maximum SPL @ 1 m
113 dB
Nominal Impedance
8 Ω (transformer bypass)
Power Handling, long-term continuous
150 W
Power Handling, Peak
600 W
Recommended Signal Processing
Not required, Bose Professional EQ voicing and SmartBass processing available
Sensitivity (SPL/1 W at 1 m)
91 dB
Transformer Taps, 100V
5, 10, 20, 40, 80 W, bypass
Transformer Taps, 70V
2.5 W, 5 W, 10 W, 20 W, 40 W, 80 W, bypass
Coverage, Vertical
Crossover
1.5 kHz, passive 2-way crossover
Driver Protection
Recommended high-pass protection 48 Hz with recommended 24 dB/octave filter; Overload protection; Resistor-network power reduction with automatic reset
High-Frequency
1 × 1 in (25 mm) compression driver, coaxial center-firing
Low-Frequency
1 × 8 in (203 mm) woofer
(1) cutout template
(1) tile bridge
