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Biamp Desono CM30DTD 4.25-Inch Ceiling Loudspeaker
The Desono CM30DTD is a 2-way, 4.25-inch ceiling loudspeaker rated for use in air-handling plenum spaces (NFPA 70, NFPA 90) and built to City of Chicago code, at a 5.2 in (131 mm) mounting depth. A tap switch selects 70V/100V or 16-ohm low-impedance operation.
A tuned bass reflex port extends low-frequency output, the grille is thin-edge and magnetically attached, and overload protection covers 24/7 operation. Zoom Rooms Certified. ETL listed to UL 1480A and UL 2043, certified to CSA C22.2#62368-1, 5-year warranty. Priced and sold individually in pairs.
| Driver configuration | 2-way, 4.25-inch |
|---|---|
| Mounting depth | 5.2 in (131 mm) |
| Impedance / tap | 16 ohm or 70V/100V (tap switch) |
| Plenum rating | Suitable per NFPA 70, NFPA 90; Chicago code |
| Low-frequency | Tuned bass reflex port |
| Certification | Zoom Rooms Certified |
| Listing | ETL to UL 1480A, UL 2043; CSA C22.2#62368-1 |
| Warranty | 5-year |













