The Bose DesignMax DM3C loudspeakers deliver articulate highs and impressive low-end from a compact in-ceiling design. With a 3.5″ woofer and 0.75″ coaxial tweeter utilizing the Dispersion Alignment system, they ensure consistent sound coverage at 135° conical. Designed for seamless aesthetics with paintable, magnetically attached grilles, these 30-watt speakers install quickly using the patented QuickHold system. Ideal for hospitality, retail, or conference applications, the DM3C enhances any space with performance and style.

Bose DesignMax DM3C Loudspeakers (1 Pair)
Coaxial 3.5″ in-ceiling speakers with premium clarity and surprising bass for compact installs.
$949
| Weight | 2700 g |
|---|---|
| Dimensions | 255 × 255 × 154 mm |
| Brands | |
| Color | Black, White |
Specs:
Frequency Range (-10 dB): 75 Hz – 20,000 Hz
Sensitivity (SPL/1 W at 1 m): 83 dB
Maximum SPL (Calculated @ 1 m): 98 dB
Power Handling (Continuous/Peak): 30 W / 120 W
Nominal Impedance: 8 Ω (transformer bypass)
Transformer Taps (100V): 6, 12, 25 W, bypass
Transformer Taps (70V): 3, 6, 12, 25 W, bypass
Coverage: 135° conical (H/V)
Transducers:
 - LF: 1 × 3.25 in (83 mm) woofer
 - HF: 1 × 0.75 in (20 mm) coaxial neodymium tweeter
Crossover: 1.7 kHz passive 2-way
Driver Protection: High-pass at 80 Hz, 24 dB/octave
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 steel backcan
Grille: Perforated steel, paintable, magnetic with safety tether

















