Control 28T-60 (停产)

High Output Indoor/ Outdoor Background/ Foreground Loudspeaker


High Output Indoor/Outdoor Background/Foreground Loudspeaker

The Control® 28T is the largest of JBL Professional’s Control Contractor Series indoor/outdoor loudspeakers.


  • Isolation transformer for 70.7 V / 100 V distributed-line sound systems.
  • Components: 8 in Polypropylene coated woofer, 1 in Titanium coated horn loaded tweeter.
  • Built-in InvisiBall® mounting hardware*.
  • Weather resistant enclosure and transducers.
  • Readily paintable.
  • 90° x 90° high frequency horn.
  • Overload Protection Circuitry.


  Version Language Size Uploaded
Control Contractor Brochure
en updated: 7月21日
  en  1.7 MB 7月21日
Control 28T-60 Spec Sheet
en updated: 7月21日
  en  1.3 MB 7月21日
Control Contractor Surface Mount Owners Manual
en updated: 7月21日
  en  2.0 MB 7月21日
Control 28T-60 Spec Sheet
updated: 10月22日
    1.3 MB 10月22日
Control Contractor Series FAQ
updated: 10月18日
    65.0 KB 10月18日
Control Contractor Brochure
updated: 4月29日
    1.7 MB 4月29日
Control Contractor Series Declaration of Conformity
updated: 10月18日
    130.9 KB 10月18日
JBL Control Series Passive Speakers DoC
updated: 12月17日
    179.3 KB 12月17日
Distributed System Design (DSD) v3.6.2
version 3.6.2, updated: 1月14日
3.6.2     804.8 KB 1月14日
Install Guides
Guide to Business Music
updated: 10月22日
    52.4 KB 10月22日
Control Contractor Weather Resistance Testing
updated: 10月22日
    37.6 KB 10月22日
Attaching Control Contractor Speakers to Stands
updated: 11月02日
    76.4 KB 11月02日
Invisiball™ Installation Instructions
updated: 9月30日
    227.1 KB 9月30日
Control Contractor Bracket and Adapter Handbook
updated: 9月27日
    774.0 KB 9月27日
MTC-PC2 & MTC-PC3 Installation
updated: 9月30日
    42.5 KB 9月30日
InvisiBall Threading Specifications
updated: 9月27日
    27.4 KB 9月27日
Owner's Manuals
Control Contractor Surface Mount Owner’s Manual
updated: 10月22日
    2.0 MB 10月22日

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频率范围 55Hz to 15kHz (-10 dB)
功率容量 175 W Continuous Program Power; 87 W Continuous Pink Noise
变压器抽头 100 V Line:60 W, 30 W, 15 W 70 V Line: 60 W, 30 W, 15 W, 7.5 W
Nominal Max Output by Tap:(dB-SPL @ 1m) 100V Input Tap#1: 102 dB, Tap#2: 105 dB, Tap#3: 107 dB, Tap#4: (do not use)
Nominal Max Output by Tap:(dB-SPL @ 1m) 70.7V Input Tap#1: 99 dB, Tap#2: 102 dB, Tap#3: 105 dB, Tap#4: 107 dB
覆盖角度 90° x 90°
Directivity Factor (Q) 7.5 dB
Directivity Index (DI) 8.8 dB
分频频率 2.8kHz
低频驱动单元 200mm (8 in) Polypropylene cone w/ WeatherEdge
HF 驱动程序 25mm (1 in) Titanium coated polycarbonate
音箱材料 HIPS (High Impact Polystyrene)
Overload Protection Full-Range power limiting to protect network and transducers
端接 Spring terminals, accepts banana plug
环境 Conforms to Mil Spec 810 for humidity, salt spray,temperature & UV. IEC 529 IP-X4 splashproof rating.
尺寸(高 x 宽 x 厚) 380 x 280 x 220 mm (15.0 x 11.0 x 8.6 in.)
Net Weight (each) 6.5kg (14.3 lb)
Shipping Weight (ea) 15kg (33 lb)


Invisiball Assembly 6mm x 180mm hex key
Optional Accessories MTC-28SSG: Stainless Steel Grille, Silver, black (-BK) or White (-WH)MTC-28WMG: Weather Max Grille with backing to break up drivig rain.MTC-28CM: Ceiling-Mount Adapter.MTC-28V: For vertical columnar orientation of up to 3 loudspeakers MTC-28H: For horizontal splaying of two speakers. Three brackets array up to six loudspeakers in a 360° array. MTC-28/25CM: Ceiling-mount adapter.


Control 28T-60 (停产)

High Output Indoor/ Outdoor Background/ Foreground Loudspeaker