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.
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MTC-CBT Flush Mount Bracket Install Guide
aggiornato: apr 2026
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| Drivers | Eight 50 mm(2 in) Full-Range | |||||||||||||||
| Frequency Range (-10dB) | 120 Hz – 20 kHz | |||||||||||||||
| Coverage Pattern | Vertical: 20° (1.5 kHz - 16 kHz, ±10°) Horizontal: 150° (ave, 1 kHz – 4 kHz, ±20°) |
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| Coverage Angle |
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| Sensitivity (1W/1m) free field | (speech mode) 93 dB (2 kHz - 14 kHz ) (music mode) 89 dB (300 Hz - 18 kHz) |
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| Sensitivity (1W @ 4m) | (speech mode) 78.8 dB SPL (100 Hz - 10 kHz) (music mode) 76.5 dB SPL (100 Hz - 10 kHz) |
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| Nominal Impedance | 8Ω (in bypass mode) 7.5w@70v; 15w@100v Tap = 667Ω 15w@70v; 30w@100v Tap = 333Ω 30w@70v; 60w@100v Tap = 167Ω 60w@70v; N/C@100v Tap = 83Ω |
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| Power Rating | 150W (600W peak), 2 hrs100 W (400W peak), 100 hrs | |||||||||||||||
| Maximum SPL | Speech: 115 dB cont ave (121 peak @ 1m); 103 dB cont ave (109 peak @ 4m) Music: 111 dB cont ave (117 peak @ 1m); 99 dB cont ave (105 peak @ 4m) |
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| EN54 Max SPL (@ 4m) | Speech: 96 dB, Music: 93 dB | |||||||||||||||
| 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, 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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