Biamp 910-01589 COLS81
Biamp 910-01589 COLS81 is backordered and will ship as soon as it is back in stock.
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Biamp 910-01589 COLS81
Product Overview
The Biamp Desono COLS81 is a column loudspeaker whose acoustic response is tailored specifically for speech, built for high intelligibility in reverberant commercial spaces. It uses a vertical array of eight drivers to produce controlled vertical directivity that projects voice to the audience while reducing floor and ceiling reflections. Its extruded-aluminum, weatherproof cabinet suits both indoor and outdoor installation in houses of worship, transport hubs, and multi-purpose rooms. A switchable transformer supports 70 V and 100 V distributed systems with a low-impedance bypass.
Product Description
The COLS81 is a mid-size speech column for paging and announcement systems that need clear voice reproduction in hard, reverberant rooms. Its eight-driver column keeps speech energy on listeners and off reflective surfaces, which is what makes column loudspeakers effective in churches, railway stations, and sports facilities. The COLS voicing is tuned for speech, distinguishing it from the speech-and-music COLW series. The cabinet is sturdy extruded aluminum and weatherproof for indoor or outdoor use, and a multi-tap switchable transformer allows 70 V or 100 V distributed operation with a low-impedance bypass. For different coverage areas, the range also includes the COLS101 and COLS41. Browse compatible amplifiers and loudspeakers in the Biamp collection at Creation Networks.
Key Features
- Speech-tailored voicing — The COLS acoustic response is optimized for speech intelligibility in paging and announcement systems.
- Eight-driver column array — A vertical array of eight drivers provides controlled vertical directivity for voice coverage.
- Controlled vertical directivity — The column format keeps voice 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.
Technical Specifications
| Model / SKU | Desono COLS81 (910-01589) |
| Type | Column loudspeaker, speech-tailored |
| Drivers | Eight-driver vertical array |
| Voicing | Speech |
| Distributed operation | Switchable 70 V / 100 V transformer with low-impedance bypass |
| Construction | Extruded aluminum, weatherproof (indoor/outdoor) |
Specifications sourced from Biamp product documentation. Confirm detailed specifications, including driver size, power taps, SPL, and frequency response, against current Biamp documentation.
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- Most in-stock orders placed Monday-Friday ship within 24-48 hours. General restrictions apply; please see our full shipping policy here.
- We offer a 30-day return policy from the delivery date on many products. Product restrictions apply. Restocking fees for the return of open-box items. Please see our full return policy here for more information.
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