Fourjay Industries

Plenum Connection Ceiling Speaker Installation SystemPDF

All steel enclosure and speaker support bridge systems for use where the ceiling cavity may be an air handling space.

Support Bridges

For use with Tee-Bar grid ceiling construction.

Protective Enclosures

Protects speaker from dirt and rodents above ceiling panel. Made of low cost polyethylene or 4J Flamex flame retardant resin.

Mounting Rings

For new or old ceiling construction. For old work ceilings the ring can be snapped and “screwed” through the hole.

Mounting Kits and Accessories