Control 328CT

8" Coaxial Ceiling Loudspeaker with HF Compression Driver

Control 328CT
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8" Coaxial Ceiling Loudspeaker with HF Compression Driver

Control 328CT has been engineered from the ground up to deliver exceptional next-generation performance in a coaxial point source design ceiling loudspeaker.

特点

  • 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.

下载

  Version Language Size Uploaded
file type icon Control 300 Brochure
en updated: 9月18日
  en  2.9 MB 9月18日
file type icon Control 328C_CT Spec Sheet
en updated: 9月18日
  en  719.5 KB 9月18日
file type icon Control 328C-CT Backcan Assembly Instructions
en updated: 9月18日
  en  538.5 KB 9月18日
file type icon Control 300 Transformer Bypass
en updated: 9月18日
  en  59.2 KB 9月18日
file type icon Control 300 Transformer Insertion Loss
en updated: 9月18日
  en  15.4 KB 9月18日
file type icon Control 300 User Guide
en updated: 9月18日
  en  2.0 MB 9月18日
Specifications
file type icon Control 328C/CT Spec Sheet
updated: 4月29日
    719.5 KB 4月29日
Manuals
file type icon Transformer Bypass on Control 321CT, Control 322CT, or Control 328CT
updated: 10月18日
    59.2 KB 10月18日
file type icon Control 300 Series Transformer Insertion Loss Chart
updated: 10月18日
    15.4 KB 10月18日
file type icon Ceiling Speaker Accessory Guide
updated: 10月18日
    126.9 KB 10月18日
Brochures
file type icon Control 300 Brochure
updated: 4月29日
    2.9 MB 4月29日
CAD Drawings
file type icon Control 300 Ceiling Speakers
updated: 10月18日
    1.4 MB 10月18日
Compliances
file type icon JBL Control Series Passive Speakers DoC
updated: 12月17日
    179.3 KB 12月17日
file type icon Control 300 Series Declaration of Conformity
updated: 10月18日
    92.7 KB 10月18日
Software
platform icon Distributed System Design (DSD) v3.6.2
version 3.6.2, updated: 9月23日
3.6.2     804.8 KB 9月23日
User Guides
file type icon Control 300 User Guide
updated: 4月29日
    2.0 MB 4月29日
Install Guides
file type icon Control 328C/CT Assembly Guide
updated: 4月29日
    538.5 KB 4月29日
Speaker Tunings
file type icon Commercial, CBT, and AWC Tunings 181030
updated: 10月22日
    557.0 KB 10月22日

If any of the links above result in strange characters in your browser, please right-click the file to save it to your computer.

性能

频率范围 (-10dB) 45 Hz – 18 kHz
额定功率 See transformer taps
变压器抽头 68W, 34W, 17W, (& 8.5W @ 70V)
Frequency Response (±3 dB) 60Hz – 16 kHz
覆盖角度 120° conical, constant directivity
阻抗 8 ohms
Directivity Factor (Q) 7.0 (Avg 1k - 16kHz)
Directivity Index (DI) 8.5dB (Avg 1k - 16kHz)

灵敏度

93 dB (1 kHz - 16 kHz)
Maximum SPL (1m) 118 dB (top 70V/100V tap)
Crossover Network 1.9 kHz, 3rd order (18 dB/oct) high-pass plus conjugate
尺寸(高 x 宽 x 厚) 305 mm (12.0 in.) diameter round baffle x depth from back of baffle of 218 mm (8.6 in)
输入接口 Screw locking barrier strip for bare wire
Drivers LF Driver: 200 mm (8 in)
HF Driver: compression driver, 25 mm (1 inch) coil
颜色 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)

随附配件

Ported baffle pre-attached, plus transformer on 328CT.
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

Accessories

MTC-RG6/8 | Round Grille for Control 200 and Control 300 Series
MTC-RG6/8 Main photo
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Round Grille for Control 200 and Control 300 Series

 

  • Rugged 19 gauge metal construction for enduring reliability.
  • Sculpted design for an elegant appearance and perfect for any decor or architectural setting.
  • Zinc underplating provides a rust and scratch resistant surface for years of maintenance free wear.
  • Powder coat final finish minimizes scratching and can easily be repainted to match any room color.

Documentation
MTC-SG6/8 | Square Grille for Control 200 and Control 300 Series
MTC-SG6/8 Main photo
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Square Grille for Control 200 and Control 300 Series

 

  • Rugged 19 gauge metal construction for enduring reliability.
  • Sculpted design for an elegant appearance and perfect for any decor or architectural setting.
  • Zinc plating provides a rust and scratch resistant surface for years of maintenance free wear.
  • Powder coated paint finish minimizes scratching and can easily be repainted to match any room color.

Documentation
MTC-TB6/8 | Tile Bridge for Control 200 and Control 300 Series
MTC-TB6/8 Main photo
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Tile Bridge for Control 200 and Control 300 Series

 

  • Robust 18-gauge steel construction with an epoxy based powdercoat finish.
  • Over-The-Grid design reduces sound transmission to ceiling grid thereby minimizing rattle.
  • 310 mm (12.2 inch) opening accommodating both Control 328C/CT and Control 227C/CT models.
  • Fits 610 mm (24 inch) and 600 mm (23.6 inch) tile grids.

Documentation
MTC-300BB8 | 1 Cubic Ft. Backcan for Control 300 Series 8 in. Drivers
MTC-300BB8 Main photo
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1 Cubic Ft. Backcan for Control 300 Series 8 in. Drivers

Professional Series

  • Extra-thick 16 gauge metal construction.
  • Lined with 12 mm (½ inch) thick MDF to eliminate resonances and to provide extra bass response.
  • Knockouts on top and side.

Documentation
MTC-300T150 | 150 Watt Transformer
MTC-300T150 Main photo
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150 Watt Transformer

For use on either 70V or 100V distributed loudspeaker lines.


Documentation

支援/最常见问题