QSC AD-C81TW-WH AcousticDesign Ceiling Mount Subwoofer System, White

Bring room-filling low frequency performance to professional installations with the QSC AD-C81TW-WH AcousticDesign ceiling mount subwoofer system. Engineered to complement QSC’s AD Series, this passive pro subwoofer delivers clean, impactful bass down to 39 Hz and handles 100W RMS (400W peak), improving music fidelity, paging intelligibility and alarm playback in security and surveillance environments. The 8" polypropylene cone and synthetic rubber surround ensure long-term reliability in humid spaces, while a heavy-gauge, powder-coated rear enclosure and acoustically transparent grille maintain a discreet, durable installation aesthetic.

Designed for integrators, the AD-C81TW includes a front-accessible, defeatable 120 Hz low-pass filter, an 8Ω bypass and a 70/100 V transformer with multiple taps for distributed audio systems. High sensitivity (92 dB) provides efficient output with less amplifier power, and convenient side-mounted input cup with conduit attachment and daisy-chain knockout speeds wiring and monitoring deployments. Ideal for retail, corporate, healthcare and security installations, the AD-C81TW adds professional low-frequency extension without sacrificing ceiling space. Specify the QSC AD-C81TW-WH for reliable sub-bass in installed audio, surveillance and monitoring systems — contact us to discuss integration and ordering.

• Adds powerful, low-end impact to ceiling installations, extending bass down to 39 Hz for clearer music, paging and alarm tones
• Space-saving ceiling-mount design with recessed input cup and included C-rings/tile rails for fast, clean installation in commercial and security environments
• Built-in 120 Hz passive low-pass (front defeatable) and 8Ω bypass for flexible integration with outboard crossovers and amplifiers
• 70/100 V transformer taps plus 8Ω operation enable distributed audio and background music systems for retail, surveillance, and monitoring setups
• Weather-resistant 8" polypropylene woofer and powder-coated steel enclosure deliver reliable performance in humid or demanding installation locations