Lowell PR8-1624
Lowell PR8-1624

Lowell PR8-1624

Lowell PR8-1624
Item# PR8-1624

Product Description


PR8-1624: Rough-in Bridge

A rough-in bridge is mounted to the structural members of a ceiling (or wall) before drywall is installed, in order to reserve space for a recessed loudspeaker. The PR8-1624 steel bridge features a half-inch protruding lip which the drywaller has to cut around, leaving a hole for speaker installation. The PR8-1624 provides an economical solution for applications where ceiling (or wall) depth is insufficient for a backbox, or where a backbox is not required by code. It can also be used with a backbox (order separately).


  • 22-gauge steel with black finish
  • 24 in. long x 13.25 in. diameter
  • 10.75 in. diameter opening
  • Mounting holes at 16 in. and 24 in. centers


  • Made in the U.S.A.
  • Certified U.S. steel


  • The rough-in bridge for recessed installation of a standard 8" loudspeaker shall be Lowell PR8-1624, which shall be made in the U.S.A. with 22-gauge certified U.S. steel and black powder epoxy finish. The rough-in bridge shall feature mounting holes available at 16" and 24"centers and include 8-32 screw retaining clips to mount a standard 8" speaker and grille (ordered separately). The rough-in bridge can be used with or without a backbox; however, the installer shall furnish (4) 8-32 mounting screws for the backbox if used.

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