{"product_id":"biamp-desono-cm20dts-2-way-ceiling-speaker","title":"Biamp Desono CM20DTS 4.25\" 2-Way Ceiling Speaker 100V \u0026 16 Ohm - White","description":"\u003ch3 dir=\"ltr\"\u003eThe Biamp Desono CM20DTS is a 4.25\" 2-Way Ceiling Speaker with a 5-position switchable transformer for 70V\/100V line and 16 Ohm low-impedance operation, tuned bass reflex port, magnetic toolless grille and front-accessible tap switch — delivering crystal clear audio for background music and public address in commercial installations.\u003c\/h3\u003e\n\u003cp dir=\"ltr\"\u003eThe Biamp Desono CM20DTS is a professional 2-way 4.25\" ceiling loudspeaker designed to deliver crystal clear audio for public address and background music applications across a wide range of commercial environments. Combining a 4.25\" coated paper cone woofer with a 1\" tweeter, the CM20DTS achieves high SPL with extremely low distortion — ensuring exceptional clarity across the full frequency spectrum for both speech intelligibility and full-range music reproduction. A tuned bass reflex port optimises low-frequency performance for a ceiling speaker of this size, delivering a fuller, more natural sound than sealed enclosure designs. Loudspeaker overload protection ensures reliable, failsafe 24\/7 operation in permanent commercial installations.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eFlexible 100V Line \u0026amp; Low Impedance Operation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eThe CM20DTS features a 5-position switchable transformer providing 70V tappings at 20W, 10W, 5W, 2.5W and 1.25W and 100V tappings at 20W, 10W, 5W and 2.5W, alongside a 16 Ohm low-impedance bypass for direct amplifier connection. With a low-impedance RMS power handling of 40W and dynamic power of 60W, the CM20DTS is equally suitable for 100V distributed systems and direct low-impedance applications. The front-accessible tap switch allows power tapping adjustments to be made without requiring ceiling access — a significant practical advantage during commissioning and in situations where level adjustments are needed after installation.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eInstaller-Friendly Design\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eThe CM20DTS has been designed with the installer firmly in mind. The low-profile enclosure requires only 84mm of mounting depth — suitable for use in suspended ceilings and shallow ceiling voids — and blind mounting from below the ceiling is supported for straightforward single-person installation. A thin-edge magnetically attached grille snaps on and off for toolless installation and removal, and can be painted to match any room décor for a fully integrated, low-visibility finish. The 2-screw mounting system and 3–41mm installation grip range accommodate a wide range of ceiling panel thicknesses.\u003c\/p\u003e\n\u003ch3 dir=\"ltr\"\u003eBiamp Desono CM20DTS Key Features:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e4.25\" 2-Way Ceiling Speaker:\u003c\/strong\u003e Coated paper cone woofer and 1\" tweeter for high SPL, low distortion and exceptional clarity across the full frequency spectrum.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e88dB Sensitivity \/ 104dB Maximum SPL:\u003c\/strong\u003e High efficiency for effective coverage across commercial spaces.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTuned Bass Reflex Port:\u003c\/strong\u003e Optimised low-frequency performance for natural, full-range music reproduction.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5-Position Switchable Transformer:\u003c\/strong\u003e 70V tappings at 20W, 10W, 5W, 2.5W and 1.25W \/ 100V tappings at 20W, 10W, 5W and 2.5W.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e16 Ohm Low-Impedance Bypass:\u003c\/strong\u003e 40W RMS \/ 60W dynamic for direct amplifier connection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFront-Accessible Tap Switch:\u003c\/strong\u003e Power tapping adjustments without requiring ceiling access.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMagnetic Toolless Grille:\u003c\/strong\u003e Snap-on\/off installation and removal — no tools required.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePaintable Grille:\u003c\/strong\u003e Matches any room décor for a low-visibility, integrated finish.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e84mm Low-Profile Mounting Depth:\u003c\/strong\u003e Suitable for shallow ceiling voids and suspended ceilings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlind Mountable from Below:\u003c\/strong\u003e Straightforward single-person installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-Screw Mounting System:\u003c\/strong\u003e 3–41mm grip range for a wide range of ceiling panel thicknesses.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLoudspeaker Overload Protection:\u003c\/strong\u003e Reliable, failsafe 24\/7 operation in permanent installations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eABS Plastic Construction:\u003c\/strong\u003e Durable, lightweight enclosure for long-term commercial installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eETL Listed (UL 1480A \u0026amp; UL 2043):\u003c\/strong\u003e Certified for commercial installation compliance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eZoom Certified:\u003c\/strong\u003e Compatible with Zoom audio systems.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Biamp","offers":[{"title":"Default Title","offer_id":57557847441781,"sku":"BIACM20DTS","price":119.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2083\/7259\/files\/CM20DTS_Front_Angle_With_Grille_12794_preview.png?v=1788875239","url":"https:\/\/www.audiovolt.co.uk\/products\/biamp-desono-cm20dts-2-way-ceiling-speaker","provider":"Audio Volt ","version":"1.0","type":"link"}