CSS-BB4X6-B vs MTC-14WG — Compare

JBL Commercial CSS-BB4X6 4" Backcan For CSS8004 B-Stock vs JBL MTC-14WG High Humidity Weather Grille For C12/C14, Wht (Pair)

The CSS-BB4X6 is a structural mounting solution for in-ceiling commercial speaker installation in suspended ceilings, while the MTC-14WG is a weather-protective grille for outdoor or high-humidity environments on existing speakers. Choose the CSS-BB4X6 if you're installing CSS8004 speakers into drop ceilings; choose the MTC-14WG if you need to protect Control 12C/T or 14C/T speakers from moisture and rain.

No sales tax on orders shipped outside California — total cost beats national retailers that charge sales tax in nearly every state.

JBL Commercial CSS-BB4X6 4" Backcan For CSS8004 B-Stock

$117.99
View JBL Commercial CSS-BB4X6 4" Backcan For CSS8004 B-Stock

JBL MTC-14WG High Humidity Weather Grille For C12/C14, Wht (Pair)

$117.43
View JBL MTC-14WG High Humidity Weather Grille For C12/C14, Wht (Pair)

Specs side by side

JBL Commercial CSS-BB4X6 4" Backcan For CSS8004 B-StockJBL MTC-14WG High Humidity Weather Grille For C12/C14, Wht (Pair)
Price$117.99$117.43
BrandJBLJBL
ConditionRefurbishedNew

Why choose JBL Commercial CSS-BB4X6 4" Backcan For CSS8004 B-Stock

  • ✓ Pack of six backcans for bulk commercial deployments
  • ✓ Meets UL1480, UL2043, NFPA 90, and NFPA 70 safety standards for code compliance
  • ✓ Reduces installation labor by fitting standard 4-inch acoustic tile openings without custom framing
  • ✓ Stainless steel screws included; designed for air handling plenums

Why choose JBL MTC-14WG High Humidity Weather Grille For C12/C14, Wht (Pair)

  • ✓ Aluminum alloy construction resists rust and pitting in high-humidity settings
  • ✓ Scrim backing breaks up driving rain and protects speaker cones
  • ✓ Simple press-fit installation requires no tools or expertise
  • ✓ Works with multiple JBL Control speaker models (12C/T and 14C/T)
Bottom line: Purchase the CSS-BB4X6 if you are a professional installing CSS8004 speakers into commercial suspended ceiling systems and need fire-rated mounting hardware. Buy the MTC-14WG if you already own JBL Control speakers and need weatherproofing for outdoor, poolside, or covered patio installations.

Frequently asked questions

What speakers do these products work with?

The CSS-BB4X6 backcans are designed exclusively for JBL CSS8004 in-ceiling speakers. The MTC-14WG grille is compatible only with JBL Control 12C/T and 14C/T ceiling speakers. They serve different speaker families and are not interchangeable.

Are these products for indoor or outdoor use?

The CSS-BB4X6 is for indoor commercial installations in suspended ceiling systems, including air handling plenums. The MTC-14WG is specifically engineered for outdoor and high-humidity environments such as poolside areas, covered patios, and venues exposed to moisture and rain.

Do I need professional installation?

The CSS-BB4X6 is intended for professional commercial installers familiar with suspended ceiling systems and building codes. The MTC-14WG has beginner-to-professional skill-level suitability and features simple press-fit mounting that does not require tools or special expertise.

What compliance certifications does the CSS-BB4X6 hold?

The CSS-BB4X6 meets UL1480, UL2043, NFPA 90, and NFPA 70 safety standards when paired with a UL Listed CSS8004 speaker, ensuring fire-rating and safe deployment in return air plenums. The MTC-14WG does not carry similar fire-safety certifications and is not rated for air handling spaces.

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