The white Constant Beamwidth Technology CBT 50LA-LS Line Array Column Loudspeaker from JBL utilizes 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. The slim, compact design fits well into virtually any architectural decor. The combination of excellent sound quality and pattern control, and compact (20.8" tall x 3.9" wide) design makes the CBT 50LA-LS Line Array Column Loudspeaker suitable for a wide variety of applications, such as retail stores, concourses, transit spaces, fill applications, conference rooms, architectural spaces, audio for video, lecture halls, and other applications where such a combination is desired.
The voicing can be set to match the application through the Music/Speech switch, conveniently located on the side of the cabinet. The Music setting provides flat frequency response, while the Speech setting produces a mid-range presence boost to provide clear, intelligible speech even at the longest throw distances. The shielded drivers feature dual neodymium magnets for light weight. Copper-capped pole pieces lower the driver inductance and flux modulation. This increases high frequency extension and reduces distortion at high drive levels. Butyl rubber surrounds provide long life even in high humidity environments. Dynamic SonicGuard overload protection minimizes distortion at high drive levels by limiting low frequency excursion dynamically. This maximizes clarity at high drive levels while protecting the drivers from damage due to overpowering.
FEATURES
- Constant Beamwidth Technology provides constant directivity up to the highest frequencies and reduces out-of-coverage lobing
- EN54-24 compliant (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 8Ω direct capability
SPECIFICATIONS
- Components : 8 x 2" (50 mm) full-range drivers
- Frequency Range : 120 Hz to 20 kHz, -10 dB (full space)
- Coverage Pattern : Vertical: 20° (1.5 to 16 kHz, ±10°) | Horizontal: 150° (average, 1 to 4 kHz, ±20°)
- Coverage Angle : 4000 Hz: 18° (H) x 140° (V) | 2000 Hz: 32° (H) x 210° (V) | 1000 Hz: 55° (H) x 260° (V) | 500 Hz: 100° (H) x 260° (V)
- Sensitivity : 1W/1m, Full Space | 93 dB (Speech mode, 2 to 14 kHz), 89 dB (Music mode, 300 Hz to 18 kHz) | 1W/4m, Full Space | 89 dB (Speech mode, 2 to 14 kHz), 77 dB (Music mode, 300 Hz to 18 kHz)
- Power Capacity : 8 Ω Setting: 150 W (600 W peak), 2 hours | 100 W (400 W peak), 100 hours
- SPL : Maximum @ 3.3' (1 m): | Speech Mode: 115 dB continuous averaged (121 peak) | Music Mode: 111 dB continuous averaged (117 peak) | Maximum @ 13.1' (4 m): | Speech Mode: : 103 dB continuous average (109 peak) | Music Mode: 99 dB continuous average (105 peak)
- Impedance : 8 Ω (in bypass mode) Taps: 667 Ω (7.5 W @ 70 V; 15 W @ 100 V tap) | 333 Ω (15 W @ 70 V; 30 W @ 100 V tap) | 167 Ω (30 W @ 70 V; 60 W @ 100 V tap) | 83 Ω (60 W @ 70 V; N/C @ 100 V tap)
- Transformer Taps : 70 V / 100 V: 60 W, 30 W, 15 W, (7.5 W at 70 V only), and 8 Ω thru, via switch
- Enclosure : Fiberglass reinforced ABS cabinet (UL94-5VB and UL94-5VA flammability-rated), painted aluminum grille
- Outdoor Durability : IP-55 rated, per IEC529, when installed with optional MTC-PC2 panel cover | UV, moisture, and 200 hour ASTM G85 acid-air/salt-spray resistant
- Rigging Points : 10 x M6 swivel (pan)/tilt insert points on back panel
- Weight : 9.0 lb (4.1 kg)
