JBL MTC-300BB12
Back Box for 12" Control 300 Series Speaker Models

OUR PART #  MTC300BB12

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The JBL MTC-300BB12 is a rectangular, 3 cubic foot backcan for any of the 12" JBL Control 300 Series speaker models.

JBL MTC-300BB12 Features:

  • 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 all four sides
  • Dual mounting system for baffle
  • Mounting platform for an optional high-power 70V/100V transformer

JBL MTC-300BB12 Specifications:

  • External Volume:  3 cu ft, nominal
  • Internal Volume:  2.4 cu ft.
  • Knockouts: 
    • 0.87 in (22.1 mm) diameter opening
    • Five (5) locations:
      • 1 on top panel
      • 1 on each side and end
  • Height  12.1 in (308 mm) above ceiling; 12.6 in (324 mm) total height
  • Width  23.1 in (587 mm)
  • Depth  18.2 in (461 mm) cabinet; 19.9 in (505 mm) including side tabs
  • Ceiling Cut Out:  14.9 x 14.9 in (378 x 378 mm)
  • Shipping Weight:  51 lbs (23.1 kg)

JBL MTC-300BB12
Back Box for 12" Control 300 Series Speaker Models

OUR PART #  MTC300BB12

Product Information:

The JBL MTC-300BB12 is a rectangular, 3 cubic foot backcan for any of the 12" JBL Control 300 Series speaker models.

JBL MTC-300BB12 Features:

  • 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 all four sides
  • Dual mounting system for baffle
  • Mounting platform for an optional high-power 70V/100V transformer

JBL MTC-300BB12 Specifications:

  • External Volume:  3 cu ft, nominal
  • Internal Volume:  2.4 cu ft.
  • Knockouts: 
    • 0.87 in (22.1 mm) diameter opening
    • Five (5) locations:
      • 1 on top panel
      • 1 on each side and end
  • Height  12.1 in (308 mm) above ceiling; 12.6 in (324 mm) total height
  • Width  23.1 in (587 mm)
  • Depth  18.2 in (461 mm) cabinet; 19.9 in (505 mm) including side tabs
  • Ceiling Cut Out:  14.9 x 14.9 in (378 x 378 mm)
  • Shipping Weight:  51 lbs (23.1 kg)
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