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


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: 11月 2023
  en  297.4 KB 11月 2023
file type icon CBT 50LA-LS Spec Sheet
updated: 10月 2020
    2.8 MB 10月 2020
file type icon CBT Brochure
updated: 10月 2020
    972.6 KB 10月 2020
CAD Drawings
file type icon CBT 50LA-1/100LA-1 Wall Bracket PDF
updated: 10月 2020
    33.2 KB 10月 2020
file type icon CBT Series Declaration of Conformity
updated: 10月 2019
    148.1 KB 10月 2019
platform icon CBT Calculator
version, updated: 8月 2023     3.7 MB 8月 2023
Tech Notes
file type icon Tech Note: Volume 1, #35
updated: 10月 2020
    2.2 MB 10月 2020
Application Guides
file type icon Loudspeakers for Sports Facilities
en updated: 5月 2021
  en  5.7 MB 5月 2021
file type icon Constant Beamwidth Technology – CBT Series Passive Controlled-Coverage Columns
en updated: 10月 2022
  en  8.5 MB 10月 2022
Install Guides
file type icon MTC-CBT-FM1/FM2 Flush-Mount Wall Brackets for CBT Speakers
updated: 10月 2020
    297.4 KB 10月 2020
file type icon CBT Stand-Mount Bracket Guide
updated: 10月 2020
    476.1 KB 10月 2020
file type icon CBT Quick Start Guide
updated: 10月 2020
    1.1 MB 10月 2020
file type icon CBT Flush-mount Bracket
updated: 10月 2020
    338.3 KB 10月 2020
file type icon CBT 50LA-1/100LA-1 Bracket Installation Guide
updated: 10月 2020
    276.7 KB 10月 2020
file type icon CBT Family Hi-Res Image
updated: 10月 2019
    237.1 KB 10月 2019
Information documents
file type icon CBT Cabinet Painting Instructions
updated: 10月 2019
    17.2 KB 10月 2019
Speaker Tunings
file type icon Commercial, CBT, and AWC Tunings 220616
version A, updated: 5月 2023
  557.0 KB 5月 2023
file type icon CBT Suspension Bracket
updated: 10月 2020
    305.4 KB 10月 2020
Safety Sheets
file type icon CBT50LA-LS EN54 Certificate
updated: 10月 2020
    3.5 MB 10月 2020
file type icon CBT Frequently Asked Questions
updated: 10月 2020
    193.2 KB 10月 2020

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Parts & Service


Drivers Eight 50 mm(2 in) Full-Range
频率范围 (-10dB) 120 Hz – 20 kHz
覆盖角度 Vertical 20° (1.5 kHz - 16 kHz, ±10°) Horizontal 150° (ave, 1 kHz – 4 kHz, ±20°)


93 dB (speech mode, 2 kHz - 14 kHz) 89 dB (music mode, 300 Hz - 18 kHz)
阻抗 8 ohms
额定功率 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)
变压器抽头 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.
颜色 Black or White (-WH)
Insert Points Ten M6 insert points on back panel.
装配 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.
尺寸(高 x 宽 x 厚) 528 x 99 x 153 mm(20.8 x 3.9 x 6.0 in)
净重量 4.1 kg (9.0 lb)


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


HARMAN Professional Solutions:


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