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Polk Audio PB-50

Pre-construction brackets for Polk 70-RT and 700-LS in-ceiling speakers (pair)

Item # 107PB50

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Contact our Virginia-based experts.
Discontinued item
1 question - 4 answers

Item # 107PB50

Need help?
Contact our Virginia-based experts.

About the Polk Audio PB-50

These pre-construction brackets are designed to hold Polk's 70-RT and 700-LS in-ceiling speakers. Use the included wings to attach the bracket to ceiling joists before the drywall goes up. Polk provides brackets, gaskets, and all the hardware you'll need to complete a quick and easy installation.

Product highlights:

  • compatible with Polk 70 RT and 700-LS in-ceiling speakers
  • adjustable brackets for easy installation
  • all hardware included
  • warranty: 60 days
  • Our 60-day money-back guarantee
  • MFR # AW0451-A

What's in the box:

  • 2 Plastic pre-construction brackets
  • 4 Plastic mounting wings
  • Eight 1.25" mounting screws

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Crutchfield response

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More details on the Polk Audio PB-50

Stacey B.

Product Research


Overview: The Polk PB SC50 pre-construction brackets are designed specifically for the Polk Audio 70-RT in-ceiling speakers (10770RT, sold separately). These pre-construction brackets are used to designate the location of where the in-ceiling loudspeakers will be installed in a ceiling. The brackets define the holes the contractor or yourself will cut out. If you're building a new home, pre-construction brackets will make installing your in-ceiling speakers easier and more efficient. The included wings mount to the pre-construction brackets and to the ceiling studs, giving you a sturdy mount to install the speakers. Each bracket requires a cutout of 6.625" in diameter.

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Customer Q&A

Crutchfield asked: Why did you buy this?
I am building a new home. These are the mounts for the future ceiling surround speakers. [ GRAY  Oct 07, 2018 ]
To pre-wire my speakers [ John  Nov 08, 2017 ]
Needed it [ Thomas  Oct 16, 2017 ]
Prepping home theater. New construction [ Collin  Jul 17, 2017 ]
No comment [ Michael  Dec 04, 2016 ]
Advised by crutch field advisor Aaron Aaron's Bio: [ Jeffery  Feb 20, 2016 ]

1 question already asked

Do you leave these installed once the drywall hole is cut out - or remove them before finalizing the drywall installation? If you leave them installed I'm assuming the speakers pass through easily for final installation?
[ Bill  Apr 10, 2019 ]
4 answers
Yes, they remain in place during final speaker installation. The speakers pass the rough them.
[ Bruce  Apr 22, 2019 ]
pull wire to location to be installed, attach sheetrock, (mark exact location either on the floor or produce reliable sketches). after sheet rock cut out locations, paint, install speakers as any final trim, after finishes are completed.
[ Cliff  Apr 19, 2019 ]
You leave them installed.
[ Thomas  Apr 16, 2019 ]
Yes, You leave these in after the drywall is installed. The templates create a nice backing support for the speakers when you clamp them in place. As you assumed the speaker slides through the template and the swing clamps come up against the template from the back to secure the speaker. Works very well.
[ John  Apr 16, 2019 ]

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