Product OverviewThe Biamp Desono D4LP is the D4 coaxial design in a low-profile back can for use when above-ceiling clearance is minimal, sold as a pair. It is a true…
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The Biamp Desono D4LP is the D4 coaxial design in a low-profile back can for use when above-ceiling clearance is minimal, sold as a pair. It is a true coaxial design with an HF compression driver arranged concentrically within the low-frequency driver and a Tru-Phase high-frequency waveguide for consistent dispersion up to 16 kHz. It supports 8 ohm or 70 V/100 V operation.
The D4LP delivers the wider dispersion of the D4 in a shallow enclosure only 3.6 inches deep. Powerful magnetic structures and efficient coils ensure high output and added headroom per power amplifier. Each unit includes the hardware needed for standard installations, including a C-ring supporting plate, tile support bridge rails, grille, paint mask, and cut-out template. Drop-Stop installation-assistant tabs and Twist-Assist face retainer tabs simplify the install. The D4LP is ETL listed to UL1480, UL2043, and CSA60065 and is suitable for air-handling spaces. The Community ALC404D amplified loudspeaker controller is recommended. Backed by Biamp’s five-year warranty.
The D4LP suits commercial meeting spaces, multi-purpose rooms, training rooms, and houses of worship where shallow plenum clearance requires a low-profile ceiling loudspeaker.
| Loudspeaker Type | Two-way full-range coaxial ceiling, low profile, 8 ohm or 70 V/100 V |
| Operating Range | 90 Hz – 18.5 kHz |
| Frequency Response | 120 Hz – 16 kHz (5 dB) |
| Max Input Ratings (8 ohm) | 60 W continuous, 150 W program |
| Transformer Taps | 70 V: 30/15/7.5/3.75 W and low impedance; 100 V: 30/15/7.5 W |
| Sensitivity (1W/1m) | 92 dB SPL (160 Hz – 12.5 kHz); 93 dB SPL (speech range) |
| Maximum Output | 110 dB SPL / 116 dB SPL peak (8 ohm) |
| Nominal Impedance | 8 ohms |
| Nominal Coverage | 130 conical (1-6 kHz) |
| Crossover Frequency | 2 kHz |
| Drivers | LF 1 x 4.5-inch; HF 1 x 3/4-inch exit compression driver |
| Enclosure | Corrosion-resistant zinc-plated steel |
| Mounting/Rigging | 3 steel mounting clamps with 2-inch grip range |
| Can Depth | 3.599 inches (91.4 mm) |
| Safety Agency Ratings | ETL to UL1480, UL2043, CSA60065; plenum-rated per NFPA 70/90 |
| Cutout Diameter | 8.75 inches (222 mm) |
| Weight | 6.6 lbs (3 kg) |
| Warranty | Five-year warranty |
How shallow is the D4LP?
The low-profile back can measures 3.6 inches (91.4 mm) deep for tight ceiling clearances.
Is the D4LP sold as a pair?
Yes. The D4LP is sold as a pair.
Does it support 70V/100V distribution?
Yes. A built-in autoformer and front-face switch provide 8 ohm or 70 V/100 V operation.
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