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 | Passive column, 8×3.3 inch plus HF |
| Operating mode | Passive |
| Drivers | 8 x 3.3 inch (84 mm) LF, 1 x 1 inch (25 mm) soft dome HF |
| Frequency range (-10 dB) | 165 Hz to 17 kHz |
| Nominal beamwidth | 100 degrees x 10 degrees |
| Power handling | 80W continuous at 8 ohm, 320W peak |
| Sensitivity | 97 dB (1W / 2.83V at 1 m) |
| Maximum SPL | 116 dB continuous, 122 dB peak at 1 m |
| 70V taps | 80W, 40W, 30W, 15W |
| 100V taps | 80W, 40W, 30W |
| Recommended amplifier | 80W to 160W at 8 ohm |
| Input connection | Pass-through screw-down terminal block |
| Environmental | IP66 per IEC 60529 |
| Mounting | Adjustable tilt L-bracket |
| Dimensions (H x W x D) | 974 x 100 x 83 mm |
| Weight | 6.7 kg |
| Finish | White, matte aluminium |





