[33 x 22 x 6"] Can these brackets be used with standard electrical junction boxes in the United States? is there a diagram of the backing plate?

[33 x 22 x 6"] I use this to hold up my LED light and its rock solid. No fears about it slipping down the pole.

[33 x 22 x 6"] I use this to hold up my LED light and its rock solid. No fears about it slipping down the pole.

[33 x 22 x 6"] Easy to use. have the option to hang from ceiling or wall looks great

[33 x 22 x 6"] I needed this bracket to install Bose 5.1 speakers in my family room. They are durable. Since the plastic plate on my house ceiling was bigger than bracket, I installed the brackets on the plastic plate

[33 x 22 x 6"] Great service, shipped fast and product as described. Lord Ronaldo

[Hardware] One of these brackets was purchased to mount a center speakers above a TV. Bose included all the hardware to mount this easily adjustable bracket including plastic anchors for masonry walls, screws for wood stud mounting and "butterfly" toggle mounting on gypsum (drywall) walls when hitting the stud isn't possible.

A small metal, rectangular backing plate with four mounting holes is provided to mount the small, but heavy speakers. The bracket, like Bose speakers, is high quality and includes a couple of adapter pieces to accommodate vertical or horizontal speakers.

There is also provided an adapter piece that snaps onto the back of the speaker. This pieces allows you to fully mount the metal plate and set the vertical and horizontal angle of the bracket without you needing to support the weight of the speaker while tightening the single adjustment screw.

Before mounting the speaker, a small decorative piece covers the backing plate. There is even thought given to routing the speaker wire through the bracket and into the speaker with small notches and a hole through which you use the Bose style speaker-wire termination plug.

Picture instructions are provided for the numerous styles of vertical and horizontal Bose center, front and surround speakers speakers.

Of note, the butterfly toggles provided require 1/2" holes. I would guess most home owners/DIY folks have 3/8" cordless or corded drills. This makes it necessary to carefully enlarge the holes in the gypsum just the tiniest bit to insert the toggles. However the screws provided with the toggle are long enough to adjust for 1/2" or 5/8" thick gypsum and perhaps even thicker plaster installations. Keep in mind this bracket is intended for use with Bose speakers and cannot, or at least not easily, be used with non Bose speakers.

When complete, the speaker mount is professional looking, matching Bose speakers.

[Hardware] I had old 8-bay ARC-8050 (a Thunderbolt [v1]) unit from Areca. While it kept the data that I needed, during the Mac OSX BigSur shutdown it usually timed out when I wrote something to it. I wanted to change to a higher capacity and a new Thunderbolt 3 device. I got it shipped quickly directly from a third party. I checked the order of drives in the old 8-bay ARC-8050 (top one is drive #1, bottom one is drive #8); checked the order of drives in the new 12-bay Areca unit (top left is #1, top right is #6, bottom right is #12); placed drive #1 from the old unit into drive #1 in the new one, .. etc. Connected the new unit to my Mac, booted Mac and... my drive appeared... Very and painless transfer... The new unit is very fast: write is about 1600 MB/s, read about 700 MB/s (that's 8 10TB drives configured as RAID 6 [60TB disk] with about only 4TB free on disk). I'll add more drives when I have the money :-)

[33 x 22 x 6"] I'm glad they still had ceiling brackets for a set of AM- 6 speakers.

[33 x 22 x 6"] Used these multi-purpose brackets to mount my Bose Surround Speakers (note, since they are multipurpose, you will not use all the supplied parts). My speakers were a new style speaker so they are not listed on Bose's list of supported speakers. As promised by B&H they worked just fine. The only hitch lies in the supplied #M8 -.80x30mm screws are too long. I went to Lowes and purchased a small pack of M5-.80 x 25mm screws for $2 and they worked just fine.