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By Biamp Systems

Biamp Desono ENT-LF-CTO Low-Frequency High Performance IP54 Column Line Source Loudspeaker

Part #:
930-01392
Model #:
ENT-LF-CTO
Availability:

Special Order (Return conditions apply)

Please be aware that global supply shortages outside our control may interfere with our normal delivery times and product availability. For more information, email sales@proacoustics.com or call us at 888-256-4112.
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The Biamp Desono ENT-LF-CTO is a modular low-frequency column loudspeaker designed to extend bass and pattern control in scalable arrays. With its high output, weather-resistant design, and flexible mounting, it’s ideal for large, reverberant spaces, both indoors and outdoors.

Description

Biamp Desono ENT-LF-CTO Low-Frequency Column Line Source Loudspeaker

The Desono ENT-LF-CTO is a high-performance modular low-frequency column loudspeaker designed to extend bass and low-frequency pattern control in scalable line array systems. Housed in the same elegant enclosure as the ENT-FR, it delivers superior output, high power handling, and consistent performance while helping minimize overall system costs.

Perfect for medium to large, highly reverberant spaces, the ENT-LF-CTO excels in applications such as auditoria, houses of worship, transportation hubs, stadium concourses, and museums. Its modular design allows arrays of nearly any length, minimizing reflections and improving speech intelligibility.

Installers can configure vertical system lobes symmetrically or asymmetrically, enabling precise coverage. Combined with ENT-FR units, tall arrays can create multiple independent vertical lobes, previously only possible with powered, steered arrays. A wide range of mounting brackets ensures easy integration in nearly any installation, indoors or outdoors.

For best performance, the Community ALC1604D amplifier is recommended, with higher power ALC models also fully compatible.

Features

  • Zoom Certified
  • Modular low-frequency column loudspeaker for scalable arrays
  • Extends bass response and pattern control
  • High output and power handling in a slim, architectural design
  • Ideal for medium to large reverberant spaces
  • Flexible indoor and outdoor direct-exposure use
  • Works seamlessly with ENT-FR columns for advanced coverage control
  • Multiple mounting options available
  • Recommended amplifier: Community ALC1604D (higher ALC models also compatible)
  • 5-year warranty

Specifications

Operating Mode Passive
Operating Environment Indoor / Outdoor Direct Exposure
Operating Range (-10 dB) 200 Hz - 1.6 kHz
Nominal Beamwidth (H x V) Using the LF column enhances vertical pattern control at lower frequencies
Transducers LF: Six 3.5" drivers with optimized spacing, allows extension of the narrow vertical beamwidth into the lower frequencies
Continuous Power Handling 85V, 600W @ 12Ω (2400W Peak) @ Nominal Impedance
Nominal Sensitivity 90 dB
Nominal Maximum SPL (Single unit) 116 dB
Typical SPL at 100 feet (30 meters) Dependent on LF configuration
Required Accessories Digital Signal Processor / 200 Hz High Pass Filter
Recommended Amplifiers 600W - 1200W @ 12Ω
(85V - 120V)
Input Connection Top: (1) Dual Banana (male)
Bottom: (1) NL4 locking connector
(2) Terminal strip (1) Banana (female)
Baffle Form Straight
Certifications IP54 per IEC 60529, designed in accordance with MIL-STD-810G
Included ABS plastic rain cover with integrated cable inlet and 1" (25.4 mm) knockout for conduit ingress
Dimensions (H x W x D) 44.5" (1129 mm) x 5.5" (140 mm) x 7.36" (187 mm)
Net Weight 25 lbs (11.3 kg)
Shipping Weight 30 lbs (13.61 kg)

DOCUMENTS

In The Box

  • (1) ENT-LF-CTO Low-Frequency Column Loudspeaker
  • (1) T-Bar Mounting Bracket
  • (1) Input Wiring cover
  • (1) Top Connector Cover
  • Drilling Template for Bracket
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