MBC Back Box (Masonry) Turntables & Cartridges high-definition surround sound

high-definition surround sound

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MBC Back Box (Masonry) Turntables & Cartridges high-definition surround soundMBC BACK BOX Sold as each Use the MBC wood and metal back boxes for installing Stealths invisible speakers into masonry, hat channel, or other instances where a support structure is needed for Stealth invisible speakers. MBC boxes can be installed before masonry work is completed, or cut and fitted into existing masonry work. The wood portion of the box provides a stable and secure attachment point for the speaker while the outer metal shell provides