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Description
JBL CBT-50LA-1 Constant Beamwidth Technology Line Array Column Loudspeaker (Black)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
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 included.
Specifications
| Drivers | Eight 50 mm(2 in) Full-Range |
| Frequency Range (-10dB) | 80 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 hrs 100 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 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. |
| 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 bracket |
| Optional Accessories | MTC-PC2 terminal panel coverMTC-CBT-FM1 flush-mount low-profile wall-mount bracket MTC-CBT-SMB1 Stand-Mount Bracket for use with 35 mm speaker stand |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 5 reviews
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Product Reviews
★★★★★ 5
Great coffee grinder!
Color: Silver
Amazing product. Easy to use and has different grades of grinding. Zero noise compared with an electric grinder and more control of the results (consistent). His size and weight make it portable and easy to carry.
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Reviewed in the United States on May 2, 2026
★★★★★ 4
Quite good as a start grinder
Color: Silver
Very good burr grinder with very functional adjustments. Holds the perfect amount in 1 go for my pour over setup. My only critique is that is has 3 unconnected hopper sections that are quite small and hard to hit. I have to be very careful to not spill and one can fill before the other 2 causing some difficulties closing the crank, but it just takes some self adjustments to get around. Overall I'm very pleased with it for the price.
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Reviewed in the United States on June 1, 2026
★★★★★ 5
Great Quality, Great Price.
Color: Black
I have used this for a few days now and it works great. It is very well made and has a large range of adjustability. It is quite small and easy to store. Definitely worth the money.
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Reviewed in the United States on May 6, 2026
★★★★★ 5
Nice Grinder at a Great Price
Color: Black
I bought this to use primarily as a travel grinder and found that it is great for every day use. It is not meant for large amounts but it is perfect for single, smaller brewing situations. The grind selection worked well and I "dialed" the proper ground size for my single sized pour over coffee maker.
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Reviewed in the United States on May 19, 2026
★★★★★ 1
Ceramic burr destroyed itself
Color: Silver
For the first two-plus months it worked fine -- the perfect grind and the perfect amount with a full barrel for my oversized coffee mug.
I've been using it once daily, more or less, on a medium grind setting of 25, and this morning the ceramic burr started to eat itself. This is not acceptable.
Follow up:
Circle Joy contacted me and offered to give a full refund on this purchase, which was gratefully accepted. This is outstanding customer service.
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Reviewed in the United States on April 28, 2026