The Bose DesignMax DM8C is a 150-watt, high-performance in-ceiling loudspeaker designed to deliver powerful SPL and outstanding clarity for demanding audio environments. Featuring an 8-inch woofer and 1-inch center-firing coaxial compression driver, the DM8C covers a frequency range of 52 Hz – 20 kHz with wide 135° conical dispersion. The sleek design with paintable, minimum-bezel grilles complements any space, while the QuickHold mounting arms simplify and speed up installation. Ideal for venues like ballrooms, retail stores, restaurants, and houses of worship, the DM8C brings rich sound and modern style to every ceiling.

| Weight | 9600 g |
|---|---|
| Dimensions | 409 × 409 × 255 mm |
| Brands | |
| Color | Black, White |
Specs:
Frequency Range (-10 dB): 52 Hz – 20,000 Hz
Sensitivity (SPL/1 W at 1 m): 91 dB
Maximum SPL (Calculated @ 1 m): 113 dB
Power Handling (Continuous/Peak): 150 W / 600 W
Nominal Impedance: 8 Ω (transformer bypass)
Transformer Taps (100V): 5, 10, 20, 40, 80 W, bypass
Transformer Taps (70V): 2.5, 5, 10, 20, 40, 80 W, bypass
Coverage: 135° conical (H/V)
Transducers:
- LF: 1 × 8 in (203 mm) woofer
- HF: 1 × 1 in (25 mm) center-firing compression driver
Crossover: 1.5 kHz passive 2-way
Driver Protection: High-pass @ 48 Hz (24 dB/oct), overload protection, automatic reset power reduction
EQ/Processing: Not required (Bose EQ/SmartBass optional)
Mounting: (3) QuickHold arms, (3) safety cable points
Compliance: UL-1480A, UL2043, NFPA 70 & 90A, CE
Environment: Indoor only
Enclosure: Engineered plastic with integrated steel backcan
Grille: Magnetic, perforated steel, paintable with safety tether












