{"product_id":"audac-adc-celo8si-w-premium-8-8-ceiling-subwoofer","title":"AUDAC CELO8SI\/W – High-End 8\" Ceiling Subwoofer, White","description":"\u003ch2\u003eWhat is the AUDAC CELO8SI\/W ceiling subwoofer?\u003c\/h2\u003e\u003cp\u003eThe AUDAC CELO8SI\/W is a high-end 8\" in-ceiling subwoofer that adds bass to CELO ceiling speaker systems without a visible cabinet. It handles 2 x 50 W continuous (AES) through a built-in stereo crossover and reaches down to 45 Hz (±3 dB). The SlimLine grill with a 1 mm border keeps it almost invisible in hotel, restaurant, retail and corporate ceilings.\u003c\/p\u003e\u003ch2\u003eHow does the AUDAC CELO8SI\/W ceiling subwoofer work?\u003c\/h2\u003e\u003cp\u003e\u003cimg src=\"https:\/\/images.pvs.global\/audac\/products\/CELO8S.webp?width=1200\" alt=\"AUDAC CELO8SI ceiling subwoofer\" style=\"max-width:100%;height:auto\" loading=\"lazy\"\u003e\u003c\/p\u003e\u003cp\u003eThe CELO8SI\/W uses a stiff, light aluminum cone in an open-back design, which keeps ceiling vibration low and lets the bass sound natural. Its integrated passive stereo crossover is the key feature: the amplifier feeds the sub (4-pin Euro terminal input), and the sub passes the high frequencies above 200 Hz on to the satellite speakers through its 8-pin output. That saves cable runs and amplifier channels on every zone. A phase switch (0° or 180°) helps it blend with the room; AUDAC recommends 0° when all speakers sit in a flat ceiling. It mounts in a 9.84\" cut-out with 4.61\" built-in depth using a 4-screw quick-fix clamp, and the magnetic grill is paintable. Pair it with the \u003ca href=\"\/products\/audac-adc-celo8i-w-premium-8-8-ceiling-loudspeaker\"\u003eCELO8I\/W\u003c\/a\u003e or other CELO speakers, and use the \u003ca href=\"\/products\/audac-adc-wmm450-fire-rated-metal-back-box-for-use-with-celo-cira-cena-mero-series-loudspeakers\"\u003eWMM450\u003c\/a\u003e or \u003ca href=\"\/products\/audac-adc-wmm630-mdf-back-box-for-use-with-celo-cira-cena-mero-series-loudspeakers\"\u003eWMM630\u003c\/a\u003e back box where an enclosure is required.\u003c\/p\u003e\u003ch2\u003eWhat are the key features of the AUDAC CELO8SI\/W ceiling subwoofer?\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated stereo crossover\u003c\/strong\u003e — feeds left and right satellites from the sub, cutting cable and amplifier channels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2 x 50 W continuous power\u003c\/strong\u003e — 2 x 100 W program and 2 x 200 W peak at 8 Ω.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAluminum 8\" driver\u003c\/strong\u003e — a stiff, light cone minimizes ceiling vibration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOpen-back design\u003c\/strong\u003e — reproduces low frequencies naturally down to 45 Hz (±3 dB).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhase switch\u003c\/strong\u003e — 0° or 180° to blend the sub with the room.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSlimLine grill\u003c\/strong\u003e — 1 mm border, 3.2 mm protrusion, paintable.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEuro terminal blocks\u003c\/strong\u003e — lockable Phoenix-style input and output connectors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty\u003c\/strong\u003e — backed by a 5-year AUDAC manufacturer warranty.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhere is the AUDAC CELO8SI\/W ceiling subwoofer typically used?\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBoardroom\u003c\/li\u003e\n\u003cli\u003eConference room\u003c\/li\u003e\n\u003cli\u003eCommercial meeting space\u003c\/li\u003e\n\u003cli\u003eMulti-purpose room\u003c\/li\u003e\n\u003cli\u003eAll-hands room\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cdiv style=\"overflow-x:auto;-webkit-overflow-scrolling:touch\"\u003e\u003ctable style=\"border-collapse:collapse;width:100%;min-width:300px;table-layout:fixed\"\u003e\n\u003ccolgroup\u003e\n\u003ccol style=\"width:44%\"\u003e\n\u003ccol style=\"width:56%\"\u003e\n\u003c\/colgroup\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px;vertical-align:top\"\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003eCELO8SI\/W – white (RAL9016 + logo)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px;vertical-align:top\"\u003e\u003cstrong\u003ePower\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003e2 x 50 W continuous (AES) \/ 2 x 100 W program \/ 2 x 200 W peak\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px;vertical-align:top\"\u003e\u003cstrong\u003eImpedance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003e8 Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px;vertical-align:top\"\u003e\u003cstrong\u003eSensitivity (1W\/1m)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003e83 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px;vertical-align:top\"\u003e\u003cstrong\u003eMax SPL\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003e103 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px;vertical-align:top\"\u003e\u003cstrong\u003eFrequency response (±3 dB)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003e45 Hz – 200 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px;vertical-align:top\"\u003e\u003cstrong\u003eFrequency range (-10 dB)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003e32 Hz – 200 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px;vertical-align:top\"\u003e\u003cstrong\u003eCrossover\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003ePassive built-in, 200 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px;vertical-align:top\"\u003e\u003cstrong\u003eInput\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003e4-pin Euro terminal block (3.81 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px;vertical-align:top\"\u003e\u003cstrong\u003eOutput\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003e8-pin Euro terminal block (5.08 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px;vertical-align:top\"\u003e\u003cstrong\u003eDriver\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003e8\" aluminum membrane\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px;vertical-align:top\"\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003e10.83 x 4.72 in (Ø x D)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px;vertical-align:top\"\u003e\u003cstrong\u003eCut-out\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003e9.84 in (Ø)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px;vertical-align:top\"\u003e\u003cstrong\u003eBuilt-in depth\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003e4.61 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px;vertical-align:top\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003e6.06 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px;vertical-align:top\"\u003e\u003cstrong\u003eConstruction\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003eABS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px;vertical-align:top\"\u003e\u003cstrong\u003eMounting\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003e4-screw quick-fixing mechanism\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px;vertical-align:top\"\u003e\u003cstrong\u003eOperating temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003e-20 °C to 60 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px;vertical-align:top\"\u003e\u003cstrong\u003eIncluded\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003eGLC08\/W white grill (RAL9003)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px;vertical-align:top\"\u003e\u003cstrong\u003eOptional\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003eGLC08I\/B black grill, GLC08\/P paintable grill\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px;vertical-align:top\"\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px\"\u003e5 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eHow do I wire the CELO8SI\/W?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eRun the stereo amplifier output into the sub's 4-pin input. The sub's 8-pin output then feeds the left and right satellite speakers with the bass already filtered out above 200 Hz.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eWhich speakers pair with it?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eAUDAC's CELO ceiling speakers, such as the CELO8I\/W, are the intended match. AUDAC also sells it in SENSO sets with CELO speakers.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eWill it rattle the ceiling?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eThe light aluminum cone and open-back design are built to keep ceiling vibration low. Solid mounting and a back box where needed help further.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eWhat cut-out does it need?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eA 9.84 in (250 mm) round hole with 4.61 in of depth.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eCan it be used on a 70V system?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eNo transformer is listed for it; it is an 8 Ω design. Ask us about 70V alternatives.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eWhere can I see the full AUDAC lineup?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eBrowse the \u003ca href=\"\/collections\/audac\"\u003eAUDAC collection\u003c\/a\u003e for speakers and amplifiers that pair with it.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eCan Creation Networks install it?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eYes. We design, install and support AUDAC systems nationwide. Call (888) 230-3661.\u003c\/p\u003e\u003c\/details\u003e","brand":"Audac","offers":[{"title":"Default Title","offer_id":68024278155500,"sku":"ADC-CELO8SI\/W","price":584.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0603\/7982\/4364\/files\/CELO8S.webp?v=1793553432","url":"https:\/\/creationnetworks.net\/products\/audac-adc-celo8si-w-premium-8-8-ceiling-subwoofer","provider":"Creation Networks","version":"1.0","type":"link"}