اسپیکر ستونی جی بی ال (JBL) مدل CBT 70J-1
اسپیکر ستونی جی بی ال (JBL) مدل CBT 70J-1
CBT 70J-1
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. (shown with included grille removed)
باند ستونی جی بی ال
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.
باند ستونی جی بی ال
SPECIFICATIONS
| Components | Four 130 mm (5 in) LF drivers Sixteen 25 mm (1 in) HF drivers |
|
| Frequency Range (-10 dB) | ۶۰ Hz – ۲۰ kHz | |
| Coverage | Vertical (selectable via switch) Narrow Mode: 25° (۲ kHz – 16 kHz) (±۱۰°) Broad Mode: 45° (۷۵۰ Hz – 16 kHz) (±۱۰°) Horizontal 150° (۵۰۰ Hz – ۸ kHz, ±۲۰°) |
|
| Sensitivity (2.83V@ 1m) | Narrow: (speech mode) 98 dB (1 kHz – 8 kHz) (music mode) 93 dB (300 Hz – 18 kHz) Broad: (speech mode) 96 dB (1 kHz – 8 kHz) (music mode) 92 dB (300 Hz – 18 kHz) |
|
| Nominal Impedance | ۸ ohms | |
| Power Capacity | ۵۰۰ W (2000 W peak), 2 hrs 350 W (1400 W peak), 100 hrs |
|
| Max SPL | Narrow: (speech mode) 125 dB cont ave (131 peak) (music mode) 120 dB cont ave (126 peak) Broad: (speech mode) 123 dB cont ave (129 peak) (music mode) 119 dB cont ave (125 peak) |
|
| Transducers | ||
| Low Frequency Drivers | ۴ 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 | ۱۶ pcs, 25 mm (1 in) drivers, dual magnet neodymium, encased magnet and coated diaphragm for moisture, UV and salt resistance, shielded. | |
| 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 | ۱۰ 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® ۶۰٫۰ and other compatible third-party brackets. Threaded mounting points can be utilized for suspension. |
|
| Dimensions (H x W x D) | ۶۹۴ x 170 x 237 mm (27.4 x 6.7 x 9.3 in) |
|
| Net Weight | ۹٫۵ kg (21 lb) | |
| Included Accessories | Swivel (pan) / tilt wall bracket | |
| Optional Accessories | 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 |
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