The Biamp Desono COLS41 (910-01588) is an extra-slim passive column loudspeaker with four 2 inch drivers and a high-frequency dome, rated IP66 for outdoor use. 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
Four 2 inch (51 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: 20W, 10W, 5W, 2.5W
100V taps: 20W, 10W, 5W
150 degrees x 20 degrees coverage
Adjustable tilt L-bracket included
Two IP66 water-tight gland nuts included
5-year warranty
Specifications
| Type | Passive slim column, 4×2 inch plus HF |
| Operating mode | Passive |
| Drivers | 4 x 2 inch (51 mm) LF, 1 x 1 inch (25 mm) soft dome HF |
| Frequency range (-10 dB) | 175 Hz to 22 kHz |
| Nominal beamwidth | 150 degrees x 20 degrees |
| Power handling | 20W continuous at 8 ohm, 80W peak |
| Sensitivity | 87 dB (1W / 2.83V at 1 m) |
| Maximum SPL | 100 dB continuous, 106 dB peak at 1 m |
| 70V taps | 20W, 10W, 5W, 2.5W |
| 100V taps | 20W, 10W, 5W |
| Recommended amplifier | 20W to 40W 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) | 400 x 66 x 66 mm |
| Weight | 2.0 kg |
| Finish | White, matte aluminium |





