Line Array Column Loudspeaker with with Eight 50 mm (2 in) Drivers and EN54:24 Certification

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Line Array Column Loudspeaker with with Eight 50 mm (2 in) Drivers and EN54:24 Certification

The CBT 50LA-LS, with Constant Beamwidth Technology™, represents a breakthrough in pattern control, utilizing analog delay beamforming and amplitude tapering to accomplish consistent vertical coverage without the narrow vertical beaming and out-of-coverage lobing that are typical of straight form-factor passive column speakers. This loudspeaker is EN 54-24 Compliant for life safety applications.



  • Patent-pending Constant Beamwidth Technology™ provides constant directivity up to the highest frequencies and reduces out-of-coverage lobing.
  • EN 54-24 Compliant for Life Safety Applications (when installed with included MTC-PC2 panel cover)
  • Switchable voicing provides flat response in music mode or mid-range presence peak in speech mode.
  • Dynamic SonicGuard™ overload protection
  • Built-in 70V/100V transformer, plus 8 ohm direct capability.
  • Swivel (pan) / tilt wall bracket included.


  Version Language Size Uploaded
file type icon MTC-CBT Flush Mount Bracket Install Guide
en updated: feb 2024
  en  297 KB feb 2024
file type icon CBT 50LA-LS Spec Sheet
updated: oct 2020
    2,79 MB oct 2020
file type icon CBT Brochure
updated: oct 2020
    973 KB oct 2020
CAD Drawings
file type icon CBT 50LA-1/100LA-1 Wall Bracket PDF
updated: oct 2020
    33,2 KB oct 2020
file type icon CBT Series Declaration of Conformity
updated: oct 2019
    148 KB oct 2019
platform icon CBT Calculator
version, updated: ago 2023     3,66 MB ago 2023
Tech Notes
file type icon Tech Note: Volume 1, #35
updated: oct 2020
    2,23 MB oct 2020
Application Guides
file type icon Loudspeakers for Sports Facilities
en updated: may 2021
  en  5,71 MB may 2021
file type icon Constant Beamwidth Technology – CBT Series Passive Controlled-Coverage Columns
en updated: oct 2022
  en  8,48 MB oct 2022
Install Guides
file type icon MTC-CBT-FM1/FM2 Flush-Mount Wall Brackets for CBT Speakers
updated: oct 2020
    297 KB oct 2020
file type icon CBT Stand-Mount Bracket Guide
updated: oct 2020
    476 KB oct 2020
file type icon CBT Quick Start Guide
updated: oct 2020
    1,15 MB oct 2020
file type icon CBT Flush-mount Bracket
updated: oct 2020
    338 KB oct 2020
file type icon CBT 50LA-1/100LA-1 Bracket Installation Guide
updated: oct 2020
    277 KB oct 2020
file type icon CBT Family Hi-Res Image
updated: oct 2019
    237 KB oct 2019
Information documents
file type icon CBT Cabinet Painting Instructions
updated: oct 2019
    17,2 KB oct 2019
Speaker Tunings
file type icon Commercial, CBT, and AWC Tunings 220616
version A, updated: may 2023
  557 KB may 2023
file type icon CBT Suspension Bracket
updated: oct 2020
    305 KB oct 2020
Safety Sheets
file type icon CBT50LA-LS EN54 Certificate
updated: oct 2020
    3,46 MB oct 2020
file type icon CBT Frequently Asked Questions
updated: oct 2020
    193 KB oct 2020

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Parts & Service


Drivers Eight 50 mm(2 in) Full-Range
Frequency Range (-10dB) 120 Hz – 20 kHz
Coverage Angle Vertical 20° (1.5 kHz - 16 kHz, ±10°) Horizontal 150° (ave, 1 kHz – 4 kHz, ±20°)
Sensitivity 93 dB (speech mode, 2 kHz - 14 kHz) 89 dB (music mode, 300 Hz - 18 kHz)
Impedance 8 ohms
Power Rating 150W (600W peak), 2 hrs100 W (400W peak), 100 hrs
Maximum SPL (1m) Speech mode: 115 dB cont ave (121 peak)Music mode: 111 dB cont ave (117 peak)
Transformer Taps 60W, 30W, 15W, (7.5W at 70V only), and 8Ω thru, via switch
Enclosure Fiberglass reinforced ABS cabinet, painted aluminum grille
Outdoor Capability IP-55 rated, per IEC529, when installed with optional MTC-PC2 panel cover. UV, moisture and 200-hr ASTM G85 acid-air/salt-spray resistant.
Color Black or White (-WH)
Insert Points Ten M6 insert points on back panel.
Mounting Included swivel (pan) / tilt wall bracket provides continuously variable +/-80 degree left-right swivel aiming (at no up/down tilt -- see Bracket Guide for maximum swivel range at various up/down tilt angles), continuously adjustable ±15 degree tilt, as well as 5 degree fixed increment points within the range. Ten threaded mounting points located on back panel located on back panel conform to industry standard rectangular 108 x 51 mm (4.25 x 2.0 in) pattern for OmniMount® 30.0 and other compatible third-party brackets. Threaded mounting points can be utilized for suspension.
Safety Agency Rating EN54-24:2008 certified (Certificate No. 0359-CPR-00238), when installed with MTC-PC2 terminal panel cover. In accordance with the requirements of IEC60849/EN60849.
Dimensions (H x W x D) 528 x 99 x 153 mm(20.8 x 3.9 x 6.0 in)
Net Weight 4.1 kg (9.0 lb)
Included Accessories Swivel (pan) / tilt wall bracketMTC-PC2 terminal panel cover
Optional Accessories MTC-CBT-FM1 flush-mount low-profile wall-mount bracket MTC-CBT-SMB1 Stand-Mount Bracket for use with 35 mm speaker stand


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Line Array Column Loudspeaker with with Eight 50 mm (2 in) Drivers and EN54:24 Certification

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