JBL CONTROL328C 8" Ceiling Speaker
Component features include a Kevlar reinforced low frequency cone for reliability, well-damped surround for smooth frequency response, high temperature voicecoil and a reduced distortion design through saturated-gap magnet geometry. The high frequency driver features a pure titanium diaphragm for high sensitivity and long life, with diamond surround for resonance control and FerroFluid™ for increased power handling.
The Control 328C and Control 328CT are easy to install. The removable multi-pin locking connector, with secure screw-down terminals, allows for pre-wiring the input wires for easy clip-on convenience during installation.
The clean, contemporary look of the optional MTC-300RG8 round grille is designed to suit high-end venues, offering a simple, elegant appearance that fits into a wide variety of décors.
The optional MTC-300BB8 one cubic foot backcan is made of extra-thick 16 gauge steel and the top is lined with ½” medium density fiberboard.
The transformer version Control 328CT comes with a pre-attached top quality, low saturation 60 Watt multi-tap transformer for 70V/100V distributed speaker lines.
To ensure long life and reliability, Control 328C/CT passes JBL’s 100-hour torture power test, the toughest standard in the industry.
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:
200 mm (8 in) woofer with Kevlarreinforced cone and 50 mm (2 in) voice-coil.
25 mm (1" exit) compression driver. - Extraordinary clarity for speech and vocals with extended frequency response for music.
- 250 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.
- System:
- Frequency Range (-10 dB): 45 Hz – 18 kHz
- Frequency Response (±3 dB): 60 Hz – 16 kHz
- Coverage Pattern: 120° conical, broadband
- Directivity Factor (Q): 7.0 (Avg 1k - 16kHz)
- Directivity Index (DI): 8.5dB (Avg 1k - 16kHz)
- Long-Term System Power Rating, IEC:
250 W (1000 W peak), 2 hrs
150 W (600 W peak), 100 hrs - Sensitivity (2.83V@ 1m):
93 dB measured half-space
98 dB computed for competitive comparison - Maximum SPL: 118 dB cont ave (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.
- Nominal Impedance (328C): 8 ohms
- Transformer Taps(328CT):
70V: 60W, 30W, 15W, & 7.5W
100V: 60W, 30W & 15W - Transducers:
- Low Frequency Driver: Kevlar reinforced cone, 50 mm (2 in) voice coil.
- High Frequency Driver: JBL 2412H-1 compression driver, 25 mm (1 in) voice coil.
- Physical:
- Input Connector (328C): Removable locking connector with screw-down terminals. Max wire 12 AWG (2.5 mm2)
- 328C: 1) + in, 2) + loop out, 3) – loop out, 4) – in
- Tap Connection (328CT): 328CT:
A) Common
B) 7.5W@70V, 15W@100V
C) 15W@70V, 30W@100V
D) 30W@70V, 60W@100V
E) 60W@70V, n/c@100V - Safety Agency Rating:
In accordance with IEC60849 / EN60849.
Transformer in CT model UL Listed per UL1876. - Baffle: Metal, round, 305 mm (12.0 in) diamter, driver premounted to baffle, ported.
- Baffle Attachment to MTC-300BB8 Backbox: Attach via 4 #10 x .75 in (19 mm) sheet metal screws.
- Grille Attachment to Baffle: 4 pcs 4 mm machine screws.
- 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) on 328C & 218 mm (8.6 in) on 328CT.
- Net Weight: 328C: 4.5 kg (10.0 lbs) 328CT: 5.4 kg (12.0 lbs)
- Shipping Weight: 328C: 5.8 kg (12.7 lbs) 328CT: 6.7 kg (14.7 lbs)
- Included Accessories: Ported baffle pre-attached, plus transformer on 328CT.
- Optional Accessories:
MTC-300RG8 Grille, round contoured, white.
MTC-300BB8 Backbox, 25 liters (1 cubic feet)
MTC-300T150 Transformer, 150 W for use with 328C.