اسپیکر ستونی جی بی ال (JBL) مدل CBT 50LA-1
اسپیکر ستونی جی بی ال (JBL) مدل CBT 50LA-1
CBT 50LA-1
Constant Beamwidth Technology™ Line Array Column Loudspeaker with Eight 50 mm (2 in) Drivers. With improved mounting bracket for enhanced aiming flexibility.
The CBT 50LA-1, with Constant Beamwidth Technology™, represents a breakthrough in pattern control, utilizing analog delay beam-forming 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.
FEATURES
- Patent-pending Constant Beamwidth Technology™ provides constant directivity up to the highest frequencies and reduces out-of-coverage lobing.
- 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 includ
SPECIFICATIONS
Components | Eight 50 mm (2 in) Full-Range |
|
Frequency Range (-10 dB) | ۸۰ Hz – ۲۰ kHz | |
Coverage Pattern | Vertical 20° (۱٫۵ kHz – 16 kHz, ±۱۰°) Horizontal 150° (ave, 1 kHz – ۴ kHz, ±۲۰°) |
|
Sensitivity (2.83V@ 1m) | ۹۳ dB (speech mode, 2 kHz – 14 kHz) 89 dB (music mode, 300 Hz – 18 kHz) |
|
Nominal Impedance | ۸ ohms | |
Power Capacity (8 ohm setting) |
۱۵۰W (600W peak), 2 hrs 100 W (400W peak), 100 hrs |
|
Max SPL | Speech mode: 115 dB cont ave (121 peak) Music mode: 111 dB cont ave (117 peak) |
|
۷۰V/100V Transformer Taps | ۶۰W, 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. | |
Colors | 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 ±۱۵ degree tilt, as well as 5 degree fixed increment points within the range. Ten threaded mounting points located on back panel conform to industry standard rectangular 108 x 51 mm (4.25 x 2.0 in) pattern for OmniMount® ۳۰٫۰ and other compatible third-party brackets. Threaded mounting points can be utilized for suspension. | |
Dimensions (H x W x D) | ۵۲۸ x 99 x 153 mm (20.8 x 3.9 x 6.0 in) |
|
Net Weight | ۴٫۱ kg (9.0 lb) | |
Included Accessories | Swivel (pan) / tilt wall bracket | |
Optional Accessories | MTC-PC2 terminal panel cover 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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