The JBL CBT 50LA-1 is a slim passive column speaker with eight 2in full-range drivers, using Constant Beamwidth Technology to hold a 20° vertical pattern with 150° horizontal coverage. It has a built-in 60W transformer for 100V and 70V lines plus an 8 ohm setting. It suits houses of worship, lecture halls, transport areas and reverberant rooms where speech clarity matters.
8x 2in
Full-range
20°
Vertical
150°
Horizontal
60W
Max 100V tap
Features
Eight 50 mm (2 in) full-range drivers
Constant Beamwidth Technology for consistent vertical coverage
20° vertical and 150° horizontal coverage
Switchable music (flat) or speech (presence peak) voicing
Taps at 60W, 30W and 15W on 100V and 70V, plus 7.5W on 70V only
8 ohm direct setting, 150W (2 hrs)
Dynamic SonicGuard overload protection
IP55 with optional MTC-PC2 panel cover
Pan and tilt wall bracket included (±80° pan, ±15° tilt)
Sold individually
Specifications
| Frequency range (-10 dB) | 80 Hz to 20 kHz |
| Vertical coverage | 20° |
| Horizontal coverage | 150° |
| Sensitivity (2.83V, 1 m) | 93 dB speech mode, 89 dB music mode |
| Maximum SPL | 115 dB continuous (121 dB peak) speech mode |
| Power capacity (8 ohm) | 150W (600W peak) 2 hrs, 100W (400W peak) 100 hrs |
| 100V taps | 60W, 30W, 15W |
| 70V taps | 60W, 30W, 15W, 7.5W |
| Low-impedance setting | 8 ohms |
| Enclosure | Fibreglass reinforced ABS, painted aluminium grille |
| Environmental | IP55 with optional MTC-PC2 |
| Dimensions (H x W x D) | 528 x 99 x 153 mm |
| Weight | 4.1 kg |





