Backbox with flat grille mounting flange is designed for installation of an 8-inch speaker/grille assembly. It is fabricated of welded, unitized heavy gauge steel and are sufficiently undercoated to eliminate acoustic and metallic resonance.
Compatible with 4A30, JR410 speakers and DX104, CP4 backboxes
20-gauge steel construction
4 screws, 4 studs mounting provision
White powder epoxy finish
Ideal for offices, hotels, schools, airports, medical, retail, and commercial facilities