بلندگوی سینمایی جی بی ال (JBL) مدل ۳۶۷۸
بلندگوی سینمایی جی بی ال (JBL) مدل ۳۶۷۸
۳۶۷۸
Screen Channel System
The 3678 screen channel system can be used in either the passive mode or in a bi-amplified system.
THX®-approved for THX system applications.
THX®-approved for THX system applications.
FEATURES
- Low Frequency Transducer: One 380 mm (15 in) low frequency driver.
- High Frequency Transducer: 25 mm (1 in) horn throat diameter, 44 mm (1.75 in) pure titanium diaphragm compression driver.
- Flat power response 100° x 100° Bi-Radial® horn.
- Operable in bi-amp or passive mode.
- Includes adjustable bracket for horn aiming.
- Shallow profile cabinet minimizes behind-screen space requirements.
- THX® – approved for THX system installations (biamplified only).
SPECIFICATIONS
| Frequency Range | ۳۰ Hz to 20 kHz (-10 dB) | |
| Frequency Response | ۴۵ Hz to 12 kHz (+/- 3 dB) | |
| Power Capacity (Continuous Pink Noise) | ۳۰۰ W Passive HF: 50 W Bi-Amp LF:600 W Bi-Amp | |
| Sensitivity | ۹۸ dB (1W, 1m) | |
| Nominal Impedance | ۸ Ohms | |
| Crossover Frequency | ۱ kHz | |
| Nominal Coverage | ۹۰° Horizontal, 90° Vertical | |
| Half-Space Reference Efficiency | ۳٫۳% | |
| Maximum Acoustic Power Output | ۸ Acoustic W (Sine Wave Input) | |
| System Polarity | Positive Voltage to RED produces forward cone motion | |
| Input Connectors | Barrier Strip Screw Terminals | |
| Dimensions (H x W x D) | ۱۰۱۹ (w/horn) x 651 x 292 mm (40.125 (w/horn) x 25.625 x 11.5 in) |
|
| Net Weight | ۴۱ kg (90 lb) |
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