Pre-Construction Boards (PCB) are for temporary use as part of the installation process for any of the JBL Conceal Series of invisible speakers into new construction. PCBs are designed to install during pre-wire and reserve the proper speaker opening as the wallboard is installation around them.
Additionally, they prevent speakers from being exposed to the harsh construction environment. Each PCB is then replaced with a speaker panel just before drywall seam finishing begins.
Pre-Construction Boards are available in each of the three speaker sizes and come 6 per carton. Pre-Construction Boards are designed to be reusable and should be saved after each project.
for JBL C22PCB 22" Pre-Construction Board for C83 & C86LF (6-Pack)
for: JBL C22PCB 22" Pre-Construction Board for C83 & C86LF (6-Pack)