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