بلندگوی سینمایی جی بی ال (JBL) مدل۵۷۴۲
بلندگوی سینمایی (اسکرین ارری) جی بی ال (JBL) مدل۵۷۴۲
۵۷۴۲
۴-Way High Power ScreenArray Loudspeakers
Large format and 3D cinemas require perfect coverage in every seat of the auditorium, wide dynamic range and extended bandwidth, as well as inaudible levels of distortion. Digital soundtracks require sound systems for premier auditoriums that can accurately reproduce the sound exactly as recorded.
اسکرین ارری جی بی ال
FEATURES
- High power four-way ScreenArray® design for maximum output, optimal coverage, and minimum distortion.
- ۱۴۰۰ watt midrange featuring four 8″ Differential Drive® transducers
- Large format 4″ neodymium, damped titanium diaphragm, high frequency compression driver.
- ۱۶۰۰ watt low frequency section with two 18″ SVG low frequency drivers
- New molded Optimized Aperture Waveguide technology for ultra low distortion and extremely uniform frequency response.
- JBL Patented SSC™ Screen spreading Compensation
- Focused Coverage Technology
- Flat Front Wave Guide design for easy baffle wall installation
- Shallow 24″ depth for minimum behind screen depth requirements.
APPLICATIONS
- High power for critical sound reproduction in large format cinemas, studio production and post production applications.
SPECIFICATIONS
| Frequency Range | ۲۵ Hz – 20 kHz (-10 dB) | |
| Frequency Response | ۳۰ Hz – 19 kHz (±۳ dB) | |
| Sensitivity | ۱۱۵ dB, 2.83V @ 1m (3.3 ft) | |
| Maxium SPL | ۱۳۶ dB SPL continuous @ 1m, 142 dB Peak | |
| System Input Power Rating | LF: 1600 W MF: 1400 W HF: 150 W |
|
| Hor. Coverage Angle (-6 dB) | ۹۰° | |
| Vert. Coverage Angle (-6 dB) | ۲۰° up, 30° down | |
| Directivity Factor (Q) | ۱۰٫۰ | |
| Directivity Index (dB) | ۱۰ | |
| Crossover Frequencies | ۲۲۰ Hz, 550 Hz, 1.3 kHz | |
| Dimensions(H x W x D) | ۲۷۶۳ mm x 762 mm x 610 mm (108.8 in x 30.0 in x 24.0 in) |
|
| Net Weight | ۱۲۸٫۱ kg (282 lb) | |
| Shipping Weight | ۱۵۱٫۴ kg (333 lb) | |
| Low Frequency | ۲ x 2242HPL, 460 mm (18 in) dia. Super Vented Gap Cooled™ (SVG), 100 mm (4 in) dia. edgewound ribbon voice coils. | |
| Nominal Impedance | ۲ x 8 ohms | |
| Input Power Rating | ۱۶۰۰ W (AES), 2000 to 4000 W recommended amplifier | |
| Sensitivity | ۱۰۴ dB SPL, 2.83V @ 1m (3.3 ft) | |
| Input Connectors | Push terminal binding posts | |
| Mid Frequency | ۴ x 2169J, 200 mm (8 in) dia. Differential Drive® Neodymium Magnet, 76 mm (3 in) dual coil edgewound ribbon voice coil. | |
| High Frequency | ۲۴۵۲H-SL 38 mm (1.5 in) exit compression driver with 100 mm (4 in) diameter voice coil and Neodymium magnet. | |
| Nominal Impedance | MF: 2 x 4 ohms; HF: 8 ohms | |
| Input Power Rating | MF: 2 x 700 W; 1000 to 2000 W recommended amplifier HF: 150 W; 500 to 1000 W recommended amplifier |
|
| Sensitivity | MF: 115 dB SPL, 2.83V @ 1m (3.3 ft) HF: 115 dB SPL, 2.83V @ 1m (3.3 ft) |
|
| Input Connectors | Screw Terminal Barrier Strip |
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