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.
Technical Specification
PHYSICAL
- 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
COMPLIANCE
- Safety Agency Ratings
- UL-1480A, S5591/ UL Listed, in compliance with UL2043 for plenum-space installation, NFPA70 & NFPA90-A, CE compliant
PERFORMANCE
- 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
- 135° conical
TRANSDUCERS
- 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
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