CSS-BB4X6-B vs MTC-300SG12 — Compare
JBL Commercial CSS-BB4X6 4" Backcan For CSS8004 B-Stock vs JBL MTC-300SG12 Square Grille For 12" Control 300 Series Drivers
The CSS-BB4X6 is a structural mounting assembly for in-ceiling commercial speaker installation, while the MTC-300SG12 is a replacement protective grille for an existing 12-inch driver speaker. Choose the backcan if you're installing CSS8004 speakers into drop ceilings; choose the grille if you need a replacement or upgrade part for a Control 300 Series loudspeaker.
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
JBL MTC-300SG12 Square Grille For 12" Control 300 Series Drivers
Specs side by side
| JBL Commercial CSS-BB4X6 4" Backcan For CSS8004 B-Stock | JBL MTC-300SG12 Square Grille For 12" Control 300 Series Drivers | |
|---|---|---|
| Price | $117.99 | $123.57 |
| Brand | JBL | JBL |
| Condition | Refurbished | New |
Why choose JBL Commercial CSS-BB4X6 4" Backcan For CSS8004 B-Stock
- ✓ Pack of six units for efficient bulk commercial deployment
- ✓ Meets UL and NFPA fire and safety codes for air handling spaces
- ✓ Reduces installation labor by fitting standard acoustic tile openings without custom framing
Why choose JBL MTC-300SG12 Square Grille For 12" Control 300 Series Drivers
- ✓ Zinc-plated steel with powder-coat finish resists corrosion and fingerprints
- ✓ Acoustically transparent design maintains original speaker tone
- ✓ Includes five replacement screws and washers for complete installation
Frequently asked questions
Are these products compatible with each other?
No. The CSS-BB4X6 is a mounting assembly designed specifically for CSS8004 in-ceiling speakers, while the MTC-300SG12 is a grille for Control 300 Series loudspeakers with 12-inch drivers. They serve different speaker models and installation purposes.
Which product is better for a home audio system?
Neither is ideal for typical home use. The CSS-BB4X6 is engineered for commercial drop-ceiling installation, and the MTC-300SG12 is a replacement grille component for a specific professional loudspeaker series. If you own a Control 300 Series speaker, the grille may be useful as a replacement part.
Do I need professional installation experience for either product?
The CSS-BB4X6 is designed for professional installers working on commercial projects and requires knowledge of suspended ceiling systems and code compliance. The MTC-300SG12 is a simple replacement grille that requires only basic tools and can be installed by users of any skill level.
What makes the CSS-BB4X6 compliant for air handling spaces?
The backcan meets UL1480, UL2043, NFPA 90, and NFPA 70 safety standards when paired with the UL Listed CSS8004 loudspeaker, ensuring the assembly is fire-rated and safe for return air plenums and similar sensitive environments.