Bose Professional DesignMax DM8C-SUB Ceiling Loudspeaker (non-directional below 200 Hz, 118 dB peak, Indoor)
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Bose Professional DesignMax DM8C-SUB
An in-ceiling subwoofer with 180 W long-term power handling and a 1x8-inch (203 mm) woofer, delivering powerful, controlled bass performance. It offers easy installation with the QuickHold mounting system and a plenum-rated backcan.
Fast QuickHold installation
Patented QuickHold spring-loaded mounting arms reduce installation time and risk of product damage.
Room-friendly aesthetics
Minimum-bezel dimensions, magnetic perforated grille, and paintable surfaces blend into any decor; includes removable logo.
Deep low frequency
Provides impressive bass response with a frequency range of 38 Hz – 155 Hz (–10 dB).
Bose EQ and SmartBass
Enhance performance with Bose Professional DSPs and amplifiers by enabling loudspeaker EQ and SmartBass processing.
Technical Specifications
Speaker Type : Ceiling subwoofer
Usage Area : Indoor
Mounting Type : In-ceiling QuickHold mounting arms
Color : Black: RAL 9005 · White: RAL 9003 · Paintable
Coverage Angle : Omnidirectional below 200 Hz
Maximum SPL : Calculated @1 m: 112 dB / 111 dB · Calculated @1 m peak: 118 dB / 117 dB
Sound Pressure (1W/1m) : 89 dB
Frequency Response : –3 dB: 45 – 117 Hz · –10 dB: 38 – 155 Hz
Power Handling (AES / Peak) : Long-term continuous: 180 W / 150 W (AES / Bose Professional tests) · Peak: 720 W / 600 W (AES / Bose Professional tests)
Woofer : 1 × 8-inch woofer (203 mm)
Impedance : 8 ohm (transformer bypass)
Crossover : Recommended crossover: 80 – 200 Hz (via DSP with active crossover) · Recommended high-pass protection: 40 Hz, 18 dB/octave
Connection Type : Single wire inlet on top; wire/conduit entry 9.5 mm
70V/100V Transformer : 70V: 20, 40, 80, 150 W, tap · 100V: 40, 80, 150 W, tap
Connector : Euroblock 6-pin, loop-thru · Accepts 18 AWG (0.8 mm2) – 14 AWG (2.5 mm2) wire
Operating Temperature : 0 °C – 50 °C (32 °F – 122 °F)
Dimensions (Diameter / Depth) : Grille Diameter × Depth: 409 × 255 mm
Mounting Cutout : Ceiling cutout: 349 mm
Weight : Net weight (speaker + grille): 9.9 kg · Tile bridge: 1.0 kg · Shipping weight: 12.9 kg
Certification : UL-1480A, S5591/ UL Listed · UL2043 for plenum space compatibility · NFPA70 & NFPA90-A · CE compliant
Housing Material : Front baffle: engineered plastics · Integrated backcan: formed steel
Other Physical Information : Backcan dimensions (Diameter × Depth): 340 × 240 mm · Maximum ceiling thickness: 76 mm · Included accessories: Adjustable tile-bridge, template
Shipping & Return Terms
Fast Shipping: 24-hour delivery within North Cyprus · 3–5 business days between Türkiye and North Cyprus
Returns: 14-day no-questions-asked returns · In original packaging, unused
Warranty: All products are distributor approved and carry a 24-month warranty.
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