8" 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.
Control 328C has been engineered from the ground up to deliver exceptional next-generation performance in a coaxial point source design ceiling loudspeaker.
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| Frequency Range (-10dB) | 45 Hz – 18 kHz |
| Power Rating | IEC Long-Term System Power Rating: 250 W continuous pink noise (1000 W peak), 2 hrs 150 W continuous pink noise (600 W peak), 100 hrs |
| Sensitivity | 93 dB (1 kHz - 16 kHz) |
| Frequency Response (±3 dB) | 60Hz – 16 kHz |
| Coverage Angle | 120° conical, constant directivity |
| Directivity Factor (Q) | 7.0 (Avg 1k - 16kHz) |
| Directivity Index (DI) | 8.5dB (Avg 1k - 16kHz) |
| Maximum SPL (1m) | 118 dB (124 dB peak) |
| Crossover Network | 1.9 kHz, 3rd order (18 dB/oct) high-pass plus conjugate to HF, 2nd order low-pass to LF |
| Impedance | 8 ohms |
| Dimensions (H x W x D) | 305 mm (12.0 in.) diameter round baffle x depth from back of baffle of 160 mm (6.3in) |
| Input Connectors | Screw locking barrier strip for bare wire |
| Drivers | LF Driver: 200 mm (8 in) HF Driver: compression driver, 25 mm (1 inch) coil |
| Color | White |
| Safety Agency | Suitable for use in air handling spaces per UL1480, UL2043, NFPA90 & NFPA 70 when installed with UL listed backcan such as JBL MTC-300BB8. S7232/UL Listed, Signaling Speaker. Transformer UL registered per UL1876. In accordance with IEC60849/EN60849. |
| Backcan | formed steel (wood-lined; accessory) |
| Baffle/Rim | Metal, round, driver pre-mounted to baffle, ported. |
| Ceiling Cutout Size | 310 mm (12.2 in) diameter (for MTC-300BB8 backcan) |
| Optional Accessories | MTC-RG6/8 Grille, round contoured, white. MTC-SG6/8 Grille, square, contoured, white. MTC-300BB8 Backbox, 25 liters (1 cubic feet) |
| Plenum Usage | Yes, with accessory backcan |
Professional Series
Sử dụng trên các đường loa phân tán 70V hoặc 100V.
Commercial audio designers and consultants have many choices when selecting the right manufacturer, product and solution to fulfill the unique requirements of each client’s particular installed audio application. The JBL Control Contactor Series was developed specifically to target these users with purpose-built ceiling, pendant, in-wall,
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