JBL MTC-200BB6 Backcan Premium 0.5 Cubic Feet Cylinder Backcan

JBL Professional MTC-200BB6 - 0.5 cu ft Premium Cylindrical Back Box for Control 227C/227CT

The JBL Professional MTC-200BB6 is a high-performance cylindrical backcan designed for the Control 227C and 227CT medium-format in-ceiling loudspeakers. Its extra-thick 16-gauge metal construction and 12 mm MDF internal lining reduce resonances and reinforce bass extension, providing a stable and predictable acoustic foundation for professional installations. It offers knockouts in the top and sides for clean, conduit -compatible cable routing. With an internal volume of 0.5 ft³ (~14.2 L) , exterior diameter of 337 mm , and overall height of 206 mm , it integrates with 310 mm ceiling cutouts and meets major plenum installation regulations for air handling spaces.

Main features

• Heavy Duty Construction : 16 gauge steel with 12mm internal MDF for resonance control and bass enhancement.
• Optimized volume : 0.5 ft³ (≈ 14.2 L ) internal volume; nominal external volume 0.7 ft³ (≈ 19.8 L ).
• Key dimensions : diameter 337 mm , overall height 206 mm , height above roof 193 mm , cut-out 310 mm diameter.
• Knockouts : 5 holes of 22.1 mm diameter (1 top and 4 sides) for conduit entry.
• Finish : Durable powder coat, repaintable to match surrounding color.
• Approvals : Plenum rated (UL-2043, UL-1480, NFPA 90 and NFPA 70A); conforms to IEC/EN 60849.
• Weight : approx. 2.95kg (6.5lb).

Compatibility

• Speakers : JBL Control 227C and Control 227CT (medium format).
• Related grilles (optional): MTC-RG6/8 (round) and MTC-SG6/8 (square) for the Control 200 family.

Product benefits

• Consistent response across rooms and locations: Controlled volume and MDF surround stabilize bass response.
• Professional Installation : Multiple 22.1mm knockouts simplify conduit routing and sealing.
• Regulatory compliance in projects with plenum air return and safety requirements.
• Long-term durability thanks to thick steel and a repaintable powder coat finish.

Use cases

• Corporate, retail, and hospitality buildings looking for acoustic consistency in 6.5" ceiling speakers.
• Educational centers, conference rooms and hallways with plenum facilities .
• Projects requiring bass control and basic acoustic insulation above the plenum.

Frequently Asked Questions

• What is the size of the ceiling cutout? 310 mm in diameter.
• How much does it protrude above the false ceiling? Approximately 193 mm ; total box height 206 mm .
• Is it plenum rated? Yes, suitable for use in air handling spaces in accordance with UL-2043/UL-1480 and NFPA 90/NFPA 70A .

Description for projects

JBL MTC-200BB6 Backcan for Control 227C/227CT ; internal volume 0.5 ft³ (≈14.2 L), external 0.7 ft³ (≈19.8 L); 16 gauge steel with 12 mm MDF ; knockouts 22.1 mm (5 locations: 1 top, 4 side); diameter 337 mm ; overall height 206 mm ( 193 mm above ceiling); cutout 310 mm ; powder coated finish ; plenum rated (UL-2043/UL-1480; NFPA 90/NFPA 70A; IEC/EN 60849).