3 Cubic Ft. Backbox for Control 300 Series 12 in. Drivers
Professional Series
JBL MTC-300BB12 3 Cubic Ft. Backbox
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.
| External Volume | 3 cu ft, nominal |
| Internal Volume | 2.4 cu ft. |
| Knockouts | 22.1 mm (0.87 in) diameter openingFive (5) locations: 1 on top panel1 on each side and end |
| Height | 308 mm (12.1 in) above ceiling324 mm (12.6 in) total height |
| Width | 587 mm (23.1 in) |
| Depth | 461 mm (18.2 in) cabinet505 mm (19.9 in) including side tabs |
| Ceiling Cutout Size | 378 x 378 mm (14.9 x 14.9 in) |
| Shipping Weight | 23.1 kg (51 lbs) |
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