Placement of 1723 HEIGHT S speakers in ATMOS configuration

[carlos-gomez]

I’m replacing my SVS Prime Elevation speakers with Arendal 1723 HEIGHT S  speakers. The Prime speakers were not placed according to spec. Since they needed to be moved why not replace them with Arendal to match 1723 SURROUND S THX?

 

Given my room dimensions, an online program provided me with the location of the ATMOS speakers. I placed tape on the floor based on the program’s speaker recommendations. Their placement is a bit wider and closer to the MLP. It looks okay to my untrained eyes, but I prefer another voice other than the one in my head. Does this look reasonable given my room measurements and the slant of the 1723 Height S speakers?

Room Measurements are

Length 15′ 9 1/8″ or 189.125″

Width   11′ 6 7/8″ or 138.875″

Height    8′ 4 1/2″ or 100.5″

MLP to Screen 7′ 11 11/16″ or 95.579″

Ear Distance from Floor 3′ 10 7/16″  or 46.4375″

Online Program recommendations for ATMOS Speakers.

Front Atmos Speakers

Speakers should be located 4′ 5.05″ into the room from the screen’s wall with 5′ 10.41″ distance between the tweeters of each front atmos speaker

Rear Atmos Speakers

Speakers should be located 11′ 4.95″ into the room from the screen’s wall with 5′ 10.41″ distance between the tweeters of each front atmos speaker

 

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[laurence-chan]

I ordered the K&M wallmounts on Amazon.

[laurence-chan]

Here’s a picture of the back right height and the back left height in the background.

 

 

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[carlos-gomez]

Please do you have the link for the 19615 Adapter plate VESA MIS-D 75/100?

 

I tried searching but was not successful.

 

 

Nice handy work with the speakers. I’m gonna setal your idea!

[laurence-chan]

The adapter plates have to be special ordered.  I got mine through Adorama.  B&H Photo also has a special order.  I just did a search and there is a place in Bellingham, WA that might have in stock, LunchboxAudio.

https://www.lunchboxaudio.com/k-m-19615-vesa-adapter-in-black/

[carlos-gomez]

Thank you!

 

Both are on order. Should arrive by October 28th.

[laurence-chan]

Happy to be of service!!!

[carlos-gomez]

I’m preparing for the arrival of the wall mounts and gathering the tools and screws as depicted in your picture.  I am not a handyman, so this is rocket science for me. Apparently, wood screws can hold quite a bit of weight.

If you have time could you answer the following questions?

The black screw is 4-1/2 in. Heavy Duty Flat-head Fastener?

I think I need the same since my walls are double Firecode X Drywall (5/8″).

Did you use two-inch wood screws to hold the mount and go thru the wood block and drywall?

 

 

Thank you.

 

[laurence-chan]

Carlos,

The black screws you are referring to were wood screws that I had left over from another project, but I believe they are made by “Spax” and were 1/4 x 3 1/2 with a T30 size bit.  I used these because of the larger/flatter head for securing the backing board to the wall into a stud, and I used 4 per backing board.  The boards were cross cut with my table saw to a specific length(13in) and placed as to minimize them showing from behind the speakers.  I pre-drilled equally spaced holes for the 1/4 x 3 1/2 woodscrews to evenly distribute the weight.  After pre-drilling the holes I figured where on the backing boards I wanted the wall mounts secured to and proceded to use a pencil to outline the wall mount as well as where the screw holes are.  I then drilled pilot holes a little smaller than the shank size of the screws I used to secure the wall mount to the backing boards.  I chose a length screw that wouldn’t pierce all the way through so I didn’t put more holes in the drywall, 1/4 x 1 machine screws I think.  Just don’t over tighten the wall mount screws as you could splinter or split the backing board, so just snug them. You’ll want to mount your backing boards to their studs first as the actual wall mounts will most likely have to be mounted over one of the stud screws, and then you’ll need to screw the speaker wall mounts on the already stud mounted backing boards.  Pre-plan as much as possible and find the studs you’ll be using before hand.  If you have metal protector plates(keeps you from drilling into electrical or plumbing) on a section of studs you plan on using, do not drill through these as you’ll possibly cause in-wall damage to existing Romex or plumbing.  Also an impact driver can make screwing these longer screws a breeze, just don’t use it to completely tighten as you can strip a stud.  I finished tightening all of my screws by hand with a ratchet.

[carlos-gomez]

Thank you!

Heading to Home Depot today.

The only missing/back-ordered piece is the speaker backplate. I’ve identified and marked the studs. So waiting for missing item.

 

Again, Thank you. I really needed your help.

[carlos-gomez]

The height speakers are still not up. Missing the 19615 Adapter plate VESA MIS-D 75/100.

How long did it take for the Adapter plates to arrive?