بلندگوی سقفی حرفه ای توکار جی بی ال (JBL) مدل Control 328C
بلندگوی سقفی حرفه ای توکار جی بی ال (JBL) مدل Control 328C
بلندگوی حرفه ای ۸ اینچ های فرکانس (فرکانس بالا) جی بی ال (JBL)
Control 328C
۸″ Coaxial Ceiling Loudspeaker with HF Compression Driver
Control 328C has been engineered from the ground up to deliver exceptional next-generation performance in a coaxial point source design ceiling loudspeaker.
FEATURES
- Consistent 120° broadband pattern control covers an extremely large area.
- Shaped mounting baffle provides the pattern control of a 300 mm (12 in) horn from a 200 mm (8 in) driver.
- Components
• ۲۰۰ mm (8 in) woofer with Kevlarre inforced cone and 50 mm (2 in) voice-coil.
• ۲۵ mm (1″ exit) compression driver. - Extraordinary clarity for speech and vocals with extended frequency response for music.
- ۲۵۰ Watt power handling with very high sensitivity provides high SPL capability.
- Advanced high-slope crossover network for constant coverage and smooth, natural midrange.
- Clean, contemporary grille and optional backbox available.
SPECIFICATIONS
Frequency Range (-10 dB) | ۴۵ Hz – ۱۸ kHz | |
Long-Term System Power Rating |
۲۵۰ W (1000 W peak), 2 hrs 150 W (600 W peak), 100 hrs |
|
Sensitivity (2.83V@ 1m) | ۹۳ dB4 measured half-space | |
Frequency Response (±۳ dB) | ۶۰Hz – ۱۶ kHz | |
Coverage Pattern | ۱۲۰° conical, broadband | |
Directivity Factor (Q) | ۷٫۰ (Avg 1k – 16kHz) | |
Directivity Index (DI) | ۸٫۵dB (Avg 1k – 16kHz) | |
Maximum SPL | ۱۱۸ dB cont ave (124 dB peak) | |
Crossover Network | ۱٫۹ kHz, 3rd order (18 dB/oct) high-pass plus conjugate to HF, 2nd order low-pass to LF |
|
Nominal Impedance (321C) | ۸ ohms | |
Dimensions (H x W x D) | ۳۰۵ mm (12.0 in.) diameter round baffle x depth from back of baffle of 160 mm (6.3in) |
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