The JBL CBT 70J-1 is a passive column speaker with four 5in woofers and sixteen 1in tweeters, using Constant Beamwidth Technology for even vertical coverage. Vertical coverage switches between 25° and 45° and voicing between music and speech modes. It suits houses of worship, auditoriums, lecture halls, transport hubs and other reverberant spaces.
4x 5in
+ 16x 1in
25°/45°
Switchable vertical
150°
Horizontal
500W
Power, 2 hrs
Features
Four 130 mm (5 in) neodymium LF drivers and sixteen 25 mm (1 in) soft dome tweeters, arranged coaxially
Constant Beamwidth Technology using analogue delay and amplitude shading
Switchable vertical coverage: 25° narrow for long throw, 45° broad for medium throw
150° horizontal coverage
Switchable music (flat) or speech (presence peak) voicing
Dynamic SonicGuard protection on the HF drivers
IP55 with optional MTC-PC2 panel cover
Pan and tilt wall bracket included (±80° pan, ±15° tilt)
Ten M6 inserts on a 127 x 70 mm pattern for OmniMount 60.0 and similar brackets
Sold individually
Specifications
| Frequency range (-10 dB) | 60 Hz to 20 kHz |
| Vertical coverage | 25° (narrow) or 45° (broad) |
| Horizontal coverage | 150° |
| Sensitivity (2.83V, 1 m) | Narrow: 98 dB speech, 93 dB music; Broad: 96 dB speech, 92 dB music |
| Maximum SPL | Narrow speech 125 dB continuous (131 dB peak) |
| Power capacity | 500W (2000W peak) 2 hrs, 350W (1400W peak) 100 hrs |
| Nominal impedance | 8 ohms |
| Enclosure | Fibreglass reinforced ABS, painted aluminium grille |
| Environmental | IP55 with optional MTC-PC2 |
| Dimensions (H x W x D) | 694 x 170 x 237 mm |
| Weight | 9.5 kg |





