Biamp 910-01593 COLW81

Product Overview

The Biamp Desono COLW81 is a two-way, full-range column loudspeaker for clear speech and music in acoustically challenging commercial spaces. It uses a vertical array of eight 3.3-inch drivers to produce controlled vertical directivity that projects sound to the audience while reducing floor and ceiling reflections. Its extruded-aluminum, weatherproof cabinet suits both indoor and outdoor installation, making it a strong fit for houses of worship, auditoriums, and other reverberant rooms. A switchable transformer supports 70 V and 100 V distributed systems with a low-impedance bypass.

Product Description

The COLW81 sits between the COLW41 and COLW101 in coverage, using an eight-driver column array to balance throw and footprint for medium-to-large rooms. The COLW series is voiced for both speech and music, so it handles spoken word, program audio, and worship music from a single loudspeaker while its column directivity keeps energy on the listeners rather than the room. The cabinet is sturdy extruded aluminum and weatherproof for indoor or outdoor use, supporting covered exterior areas as well as interior halls. A multi-tap switchable transformer allows 70 V or 100 V distributed operation, with a low-impedance bypass for direct amplifier use. For larger or smaller coverage areas, the range also includes the COLW101 and COLW41. Browse compatible amplifiers and loudspeakers in the Biamp collection at Creation Networks.

Key Features

• Eight-driver column array — A vertical array of eight 3.3-inch drivers provides controlled vertical directivity for medium-to-large rooms.
• Speech and music reproduction — The COLW voicing handles spoken word, program audio, and music in one loudspeaker.
• Controlled vertical directivity — The column format keeps sound on the audience and reduces reflections in reverberant rooms.
• Weatherproof aluminum cabinet — The extruded-aluminum enclosure is rated for indoor and outdoor use.
• 70 V / 100 V distributed operation — A switchable transformer supports constant-voltage systems, with a low-impedance bypass for direct amplifier operation.
• Discreet appearance — The slim column profile blends into architectural interiors and facades.

Typical Applications

• House of worship
• Auditorium
• Multi-purpose room
• Commercial meeting space
• Government space

Technical Specifications

Specifications sourced from Biamp product documentation. Confirm detailed specifications, including power taps, SPL, and frequency response, against current Biamp documentation.

Frequently Asked Questions

What is the difference between the COLW and COLS series?
The COLW series is voiced for both speech and music, while the COLS series is tailored specifically for speech and paging.

Can the COLW81 be used outdoors?
Yes. The extruded-aluminum cabinet is weatherproof and rated for both indoor and outdoor installation.

How does it perform in reverberant rooms?
The eight-driver column produces controlled vertical directivity that keeps sound on the audience and reduces reflections, improving intelligibility.

Does it work on 70 V / 100 V systems?
Yes. A switchable transformer supports 70 V and 100 V distributed lines, with a low-impedance bypass for direct amplifier operation.

Which COLW model should I choose?
Choose the COLW81 for medium-to-large rooms; step up to the COLW101 for longer throw or down to the COLW41 for smaller spaces.

Does it include a warranty and support?
Biamp products are backed by manufacturer warranty and technical support. Contact Creation Networks for current warranty terms and integration assistance.