JBL CBT-70J-1 Constant Beamwidth Technology Two-Way Line Array Column with Asymmetrical Vertical Cove
Overview
Constant Beamwidth Technology™ Two-Way Line Array Column with Asymmetrical Vertical Coverage. With improved mounting bracket for enhanced aiming flexibility and stronger grille.
The CBT 70J-1, with Constant Beamwidth Technology™, represents a breakthrough in pattern control consistency, utilizing complex analog delay beam-forming and amplitude tapering to accomplish superior, consistent vertical coverage without the narrow vertical beaming and out-of-coverage lobing that are typical of straight form-factor column speakers.
Features
- Asymmetrical vertical coverage sends more sound toward far area of room to make front-toback sound levels more consistent.
- Components: Sixteen 25 mm (1 in) soft dome tweeters and four 125 mm (5 in) high-power LF drivers,
arranged coaxially. - Patent-pending Constant Beamwidth Technology™ provides constant directivity up to the highest frequencies and reduces out-of-coverage lobing.
- Vertical pattern coverage switchable between 45° for medium-throw coverage and 25° for
long-throw applications. - Switchable voicing provides flat response in music mode or mid-range presence peak in speech mode.
- Dynamic SonicGuard™ overload protection of HF devices
- Swivel (pan) / tilt wall bracket included.
Specifications
| Model | CBT 70J-1 | ||||
| Product Type | Two-Way Line Array Column with Asymmetrical Vertical Coverage | ||||
| Key Features | |||||
|---|---|---|---|---|---|
| Asymmetrical Vertical Coverage | Sends more sound toward the far area of the room to make front-to-back sound levels more consistent. | ||||
| Components | Sixteen 25 mm (1 in) soft dome tweeters and four 125 mm (5 in) high-power LF drivers, arranged coaxially. | ||||
| Constant Beamwidth Technology™ | Provides constant directivity up to the highest frequencies and reduces out-of-coverage lobing. | ||||
| Vertical Pattern Coverage | Switchable between 45° for medium-throw coverage and 25° for long-throw applications. | ||||
| Switchable Voicing | Provides flat response in music mode or mid-range presence peak in speech mode. | ||||
| Overload Protection | Dynamic SonicGuard™ overload protection of HF devices | ||||
| Included Mounting | Swivel (pan) / tilt wall bracket included. | ||||
| System | |||||
| Components | Four 130 mm (5 in) LF drivers Sixteen 25 mm (1 in) HF drivers |
||||
| Frequency Range (-10 dB) | 60 Hz – 20 kHz | ||||
| Coverage - Vertical | Selectable via switch | ||||
| Narrow Mode | 25° (2 kHz - 16 kHz) (±10°) | ||||
| Broad Mode | 45° (750 Hz - 16 kHz) (±10°) | ||||
| Coverage - Horizontal | 150° (500 Hz – 8 kHz, ±20°) | ||||
| Sensitivity (2.83V@ 1m) - Narrow, Speech Mode | 98 dB (1 kHz - 8 kHz) | ||||
| Sensitivity (2.83V@ 1m) - Narrow, Music Mode | 93 dB (300 Hz - 18 kHz) | ||||
| Sensitivity (2.83V@ 1m) - Broad, Speech Mode | 96 dB (1 kHz - 8 kHz) | ||||
| Sensitivity (2.83V@ 1m) - Broad, Music Mode | 92 dB (300 Hz - 18 kHz) | ||||
| Nominal Impedance | 8 ohms | ||||
| Power Capacity - 2 hrs | 500 W (2000 W peak) | ||||
| Power Capacity - 100 hrs | 350 W (1400 W peak) | ||||
| Max SPL - Narrow, Speech Mode | 125 dB cont ave (131 peak) | ||||
| Max SPL - Narrow, Music Mode | 120 dB cont ave (126 peak) | ||||
| Max SPL - Broad, Speech Mode | 123 dB cont ave (129 peak) | ||||
| Max SPL - Broad, Music Mode | 119 dB cont ave (125 peak) | ||||
| Transducers | |||||
| Low Frequency Drivers | 4 pcs, 130 mm (5 in) drivers, dual magnet neodymium, 38 mm (1.5 in) voice coil, damped blended textile surround, coated diaphragm for moisture, UV, and salt resistance, shielded. | ||||
| High Frequency Drivers | 16 pcs, 25 mm (1 in) drivers, dual magnet neodymium, encased magnet and coated diaphragm for moisture, UV and salt resistance, shielded. | ||||
| Enclosure | |||||
| 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 | 10 M6 swivel (pan)/tilt (16 mm deep) 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 variable +/-15 degree tilt, as well as 5 degree fixed increment points. Ten threaded mounting points located on back panel of cabinet conform to industry standard rectangular 127 x 70 mm (5.0 x 2.75 in) pattern for OmniMount® 60.0 and other compatible third-party brackets. Threaded mounting points can be utilized for suspension. | ||||
| Mounting Threads | M6x1.0P (10 places) | ||||
| Dimensions & Weight | |||||
| Dimensions (H x W x D) | 694 x 170 x 237 mm (27.4 x 6.7 x 9.3 in) | ||||
| Net Weight | 9.5 kg (21 lb) | ||||
| Accessories | |||||
| Included Accessories | Swivel (pan) / tilt wall bracket | ||||
| MTC-PC2 | Terminal panel cover | ||||
| MTC-CBT-SMB1 | Stand-Mount Bracket for use with 35 mm heavy duty speaker stand | ||||
| MTC-CBT-FM2 | Flush-mount low-profile wall-mount bracket | ||||
| Applications | |||||
| Applications | Performance auditoriums, lecture halls, classrooms, A/V, transit centers, school stadiums, multipurpose spaces, racetracks, theme parks, fill applications, and other applications requiring controlled asymmetrical vertical coverage. | ||||
| Voicing & Protection | |||||
| Music Setting | Provides flat frequency response. | ||||
| Speech Setting | Produces a mid-range presence boost for clear, intelligible speech at long throw distances, along with increased midrange sensitivity for higher midrange maximum output capability. | ||||
| Dynamic SonicGuard™ | Protection on the high frequency section minimizes distortion at high drive levels by limiting driver excursion dynamically while protecting the drivers from damage due to occasional overpowering. | ||||
| Measurement Notes | |||||
| Frequency Range / Sensitivity Measurement | Full space | ||||
| Power Capacity Test | IEC standard, full bandwidth pink noise with 6 dB crest factor. | ||||
| Max SPL Calculation | Calculated based on power rating and measured sensitivity, exclusive of power compression. | ||||
| Document Information | |||||
| Document Number | 5011382 REV B | ||||
| Document Date | 02/13 | ||||
