Jbl Control 328c 8" 2-way 250w Coaxial Ceiling Speaker
- Product Code: ga219361
-
The JBL Control 328C is a passive 8" coaxial ceiling speaker designed for voice amplification and foreground music reproduction in waiting rooms, offices, retail stores, and restaurants. When driven by an 8-Ohm power amplifier (available separately), this 2-way speaker provides a long-term power capacity of 250W (1000W peak). The Control 328C is equipped with a durable 8" Kevlar-reinforced cone and a titanium-diaphragm compression driver, yielding an extended frequency response of 60 Hz to 16 kHz.
The cone and pre-attached baffle serve as a high-frequency waveguide, which results in reliable 120° broadband coverage while the built-in crossover network ensures proper frequency distribution to the speaker components. A removable locking connector with screw-down terminals ensures simple wiring for the input and loop output.Passive Design 8" Woofer with Kevlar-Reinforced Cone High-Frequency Compression Driver 250W Program (1000W Peak) Power Capacity For Power Amplifiers 60 Hz to 16 kHz Frequency Response Built-In Crossover Network 120° Broadband Coverage Removable Locking Input Connector
Parameters | |
---|---|
Active or Passive | Passive |
LF Driver | 8" / 20 cm Woofer with Kevlar-Reinforced Cone and 2" / 5 cm Voice Coil |
HF Driver | JBL 2412H-1 Compression Driver with 1" / 2.5 cm Voice Coil |
Frequency Range | 45 Hz to 18 kHz (-10 dB) |
Frequency Response | 60 Hz to 16 kHz (±3 dB) |
Coverage Pattern | 120° Conical, Broadband |
Directivity Factor | 7 (1 to 16 kHz) |
Directivity Index | 8.5 dB (1 to 16 kHz) |
Power Capacity | For 2 Hours: 250 W (1000 W Peak) For 100 Hours: 150 W (600 W Peak) |
Sensitivity | Measured Half-Space: 93 dB (2.83 V at 1 m) Computed for Competitive Comparison: 98 dB (2.83 V at 1 m) |
Maximum SPL | 118 dB Continuous Average (124 dB Peak) |
Impedance | 8 Ohms |
Transformer Taps | Not applicable |
Crossover | Frequency: 1.9 kHz Low-Pass Filter: 2nd Order (12 dB/Octave) High-Pass Filter: 3rd Order (18 dB/Octave) |
Input | Removable Locking Connector with Screw-Down Terminals |
Maximum Wire Size | 12 AWG |
Shielded | No |
Baffle | Material: Metal Diameter: 12" / 30.5 cm |
Dimensions | 12.0 x 6.3" / 30.5 x 16.0 cm from Back of Baffle |
Weight | 10 lb / 4.5 kg |
Safety Rating | UL 1480, UL 2043, NFPA 90, and NFPA 70 when Installed with a UL-Listed Backcan S7232/UL, UL 1876, IEC 60849 / EN 60849 |
Packaging Info | |
Package Weight | 14.6 lb |
Box Dimensions (LxWxH) | 15.6 x 15.4 x 12.9" |
Coaxial ceiling speaker with pre-attached ported baffle
For use with 8-Ohm power amplifiers
Long-term power handling of 250W (1000W peak)
Durable 8" Kevlar-reinforced cone with 2" voice coil
Low-frequency cone and shaped mounting baffle perform as a true 12" diameter waveguide for the high frequencies
Metal throat transitions smoothly to the horn to eliminate high-frequency beaming
High-temperature voice coil
High-frequency driver features a pure titanium diaphragm for high sensitivity and long life, a diamond surround for resonance control, and FerroFluid for increased power handling
Consistent 120° coverage on a broadband basis
Built-in crossover network with 18 dB/octave high-pass filter and 12 dB/octave low-pass filter
Removable multi-pin locking connector with secure screw-down terminals allows pre-wiring of inputs for easy clip-on convenience during installation
Compatible with MTC-RG6/8 and MTC-SG6/8 grilles, and MTC-300BB8 backbox (all available separately)
Related Questions and Answers
Q: 1. Can you swap the longer handle with the short handle?
A: No.
Q: 2. Will this fit on the Manfrotto MT190XPRO4 Legs?
A: Yes it will.
Q: 3. How do you tilt the head up & down?
A: Twist the handles counter-clockwise to loosen the head along the axis, then push or pull for movement. Feel free to chat with us over video on our new superstore video live-chat function and we can demonstrate it for you if you're still having trouble!
Q: 4. Does it come with an 3/8"-16 screw adapter?
A: No, Manfrotto Befree 3-Way Live Head does not include a 1/4"-20 to 3/8"-16 bushing Adapter in the box. You will need to purchase this accessory separately.
Q: 5. Will the Manfrotto MH804 3 way or the Befree 3 way heads fit onto a Geekoto 77 AT24 PRO DREAMER.
A: Hi James! The Geekoto tripod has a 3/8"-16 reversible screw beneath its included ballhead that will accept most tripods heads and accessories!
Q: 6. Does anyone know if this head can be mounted on a Cosmo Mini 500 copy stand perhaps with an adapter; want to scan negs digitally and want to be able to level the camera?
A: While B&H does not carry the Cosmo Mini 500 Copy Stand you list above, it appears from the pictures on the manufacturer's website the screw on the copy stand is a 1/4"-20 male threaded screw. The Benro GD3WH 3-Way Geared Head has a 3/8"-16 female tripod socket on the base of the head, so you would need an adapter such as the Oben 3/8"-16 to 1/4"-20 Reducer Bushing, B&H # OB1039, to connect the Benro GD3WH 3-Way Geared Head to the Cosmo Mini 500 Copy Stand.
Q: 7. mine finally arrived. i am moving over from a Manfrotto 410 Jr. geared head.to those that have this head now, are the oblong pill spirit levels on the clamp crooked? one of mine is glued in really crooked which kind of defeats the purpose.
A: If there is a defect, we recommend a return or an exchange. Please contact B&H Customer Service to do so: https://bhpho.to/2caRE5L
Q: 8. I am considering this head for use with a Chamonix 4x5 camera. From the available images, it appears that the top knob is higher than the base plate, and might come into contact with the base of the camera. Is this the case or am I just looking at the images incorrectly?
A: The top knob gets very close to the camera plane. In a regular DSLR or mirrorless the camera ends by the plate and there is enough space between the plate and the knob where the camera will not touch the knob. If you are using a very large camera that extends many inches back from the tripod screw, the top knob would get in the way. At a minimum it would be very difficult for you to access the top knob with the large camera on the head,.
Q: 9. Will any Arca-type plate fit? For example B&H #DEDS1?
A: Yes any arca type plate will fit on the Benro GD3WH 3-Way Geared Head including B&H #DEDS1.
Q: 10. Will this head fit my Manfrotto 3221 WN tripod and/or do I need any adapters? I'll be connecting my Canon eos 5d Mk2
A: The Manfrotto Befree 3-Way Live Head is compatible with the Manfrotto 3221WN (055BWB) Wilderness Tripod Legs--you don't need any adapters.
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