The Biamp Desono COLW81 (910-01593) is a passive column loudspeaker with eight 3.3 inch drivers and a high-frequency dome, rated IP66 for outdoor use and finished in white. A terminal-block tap selects 70V/100V or 8 ohm low impedance operation. Supplied with adjustable tilt L-brackets and two IP66 gland nuts.
Key Features
Eight 3.3 inch (84 mm) coated paper cone LF drivers
One 1 inch (25 mm) soft dome HF driver
IP66 rated for outdoor installation
Selectable 70V/100V or 8 ohm low impedance
70V taps: 80W, 40W, 30W, 15W
100V taps: 80W, 40W, 30W
100 degrees x 10 degrees coverage
High 97 dB sensitivity
Adjustable tilt L-bracket included
5-year warranty
Specifications
| Type | Two-way 8 x 3.3-inch column loudspeaker |
| Operating Mode | Passive |
| Drivers | LF 8 x 3.3 inches; 1 x 1 inch |
| Power | 80W continuous; 320W peak |
| Transformer | 70V: 80W, 40W, 20W, 15W; 100V: 80W, 40W, 30W |
| Impedance | 8Ω |
| Frequency range | 165 Hz to 17 kHz |
| Sensitivity | 97 dB (1W/1m) |
| Maximum Output | Max Output @1m: 116 dB; 122 dB peak |
| SPL | Nominal Maximum SPL @ 1m; Peak: 122 dB; Continuous: 116 dB |
| Dispersion | (H x V) 100° x 10° |
| Recommended amplifier | 80W to 160W @ 8Ω (25V to 36V) |
| Connectivity | Multi-position pass-through, screw-down terminal block |
| Control | None; select transformer tap or low impedance input via terminal block wiring |
| IP rating | IP66 per IEC 60529 |
| Operating Environment | Indoor / Outdoor |
| Included Accessories | L-brackets and 2x IP66 water-tight gland nuts (Included); COLWBRA: pan/tilt mounting bracket |
| Material | Grille: Aluminium White (RAL 9016) finish; Enclosure / Finish: Aluminium, matte finish, White |
| Finish | White, RAL 9016 |
| Dimensions | 973 x 99 x 84 mm (H x W x D) |





