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post #1 of 6 Old 09-21-2019, 11:05 AM - Thread Starter
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Need help stabilizing projector

I own a jvc x790r so it’s a pretty heavy projector. But with my subs the shelf it’s wall mounted on it shakes. Not to bad but blurry images when listening at reference or above. What is the best way to reduce or remove the shaking. Are there any good rubber isolater feet to put under the feet of the projector or maybe isolators between the shelf and the brackets holding it up? Would appreciate any and all ideas.
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post #2 of 6 Old 09-21-2019, 11:30 AM
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I just built a hush box myself and secured with chains that hang down from the ceiling. But that might be a bit much for what you're trying to accomplish. Maybe these would help...


https://www.amazon.com/Vibrapod-Isol.../dp/B00PY55OSO
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post #3 of 6 Old 09-21-2019, 11:36 AM
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Not terribly helpful but try turning it down before you go deaf :-)
If the wall is moving that much you may have bigger problems then a blurry image.. Is this an existing interior wall or wall in a basement you can access from behind? More bracing and anchoring would seem in order.
If you know someone with a 3d printer they could model and print some TPU isolators for under the feet but they will not decouple the feet from the shelf just absorb some or the vibration.
Good luck!

Doug
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post #4 of 6 Old 09-21-2019, 11:51 AM
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You have an interesting issue, which could be fun to solve.

Look into vibration isolation platforms to put your JVC on. Perhaps something like this from Townshend.

http://www.townshendaudio.com/hi-fi-...tion-platform/


What is being used in the video looks pretty effective as well. Have no firsthand knowledge of either, just directions for the search.

https://www.youtube.com/watch?v=reYt...&frags=pl%2Cwn
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post #5 of 6 Old 09-21-2019, 12:09 PM - Thread Starter
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My subwoofer a svs sb4000. Is sitting in the back corner most of the time it’s not a problem. But I like to watch my 4k movies or atleast the action scenes loud at times. But it’s not like it’s at 120db. The back wall about 5 feet over and 6 feet up has a 2x triangle bracket to hold a shelf the jvc sits on. Basically it sits on a heavy duty wall shelf. Same wall the sub sits about a foot away from. It’s really easy to access behind the wall as it’s a storage area behind that wall and is unfinished so only has drywall on the room side I can acres power boxes outlets and anything on the storage side. I was thinking isolation feet on the projector would help maybe even also on the sub but I do enjoy feeling the explosions and such.
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post #6 of 6 Old 09-21-2019, 02:16 PM
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how is the sill-plate of the wall anchored to the slab and the header to the floor joists above? Maybe add a few anchored on the bay where the projector is mounted and on either side as well as sistering the wall joists? Also adding more connections to the floor same as the slab? I am not a construction expert but if the wall is moving enough to visibly more the image you would start to tightening up the wall.

Doug
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