Turntable wall mount shelf
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dzkfraser
Super Member
I made one out of some spare particle board I had lying around. I had to reinforce with 2x2 wood strips so it wouldn't sag and have solid points to put screw eyes thoo hang it. I hung from the wall with chains and S hooks and used turnbuckles to level - have 2 turnatble on it. Works great, the isolation is fantastic.
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WaynerN
Addicted Member
I made my own shelf for the garage using oak 1 X 2s and 1 X 3s (if I can find a picture, I will post). used some bracing. Mounting was on 16" centers. Little cost, looked nice, turntable completely isolated. If you have a drill and a miter saw (or even a regular saw), you can make one.
jmfg
Member
I dissected an old MCM teak hutch. I removed the top, toe kick, shortened the side panels, and added a 1x3 hanging rail (screwed into the sides, internal dividers and top), and bolted the rail into the wall studs. The pros are: It was cheap (thrift store). It's 19 1/4” deep so my gear fits easily. It aids in turntable isolation. It has storage space for records underneath. It has high WAF. (As an interior designer by trade, she actually suggested I wall mount my speakers for “design aesthetics” which also helps sonically!) After adding the hanging rail, it actually is incredibly sturdy.
Cons: It (from the factory) wasn’t of the greatest build quality (cam and bolt system). The “shelf” at just under 6’ long, dictated poor speaker placement. Arguable “problem” - the top was in such incredible condition, I couldn’t force myself to drill holes in it, so cord management (because this is located in our dining room) was a real chore.
Overall, I consider it a success!
illinoisteve
Super Member
I have bouncy floors so I'm going to have to have turntable shelves on an outside wall, eventually. Entire room has to be switch around before I can get access to the wall area I want to use, so the project keeps getting put off.
NoTransistors
Dual Turntables Super-Restorer
My new Florida home is cement blocks on a poured concrete slab. First time in almost 63 years that my needle doesn't bounce.
cafe latte
Addicted Member
Metal shelf mounts braced and the turntable on that. Any board will store energy so a metal structure that the feet sit in is ideal as the energy on the air is picked up by as little as possible.
Chris
Chris
Frank Rier
New Member
I got a Rega wall mount for a Planed for $75. I am about to install it.
WaynerN
Addicted Member
Yeah right. That is why so many guys use maple blocks to put their tables on (including me). Where do you get this stuff?
cafe latte
Addicted Member
Really no need to be rude. What I said is correct, reasoning is this. Any flat surface in the audio room WILL pick up vibrations from the speakers this cant be avoided. The larger the flat surface the more energy it will gather this is simple physics. Energy can not be created or destroyed this is the first law of thermodynamics If we put a turntable on a wooden shelf the shelf itself WILL store lots of vibration energy which we then have to isolate the turntable from. Sorbothane is good at this as vibrations are converted to heat and reduced (back to our law).
Now the frame support I mentioned has limited surface area so it will by design collect less energy from the music in the room (this is fact again refer to the law). Add cups at the feet of the frame for Sorbothane and any vibrations it picks up are again reduced before turntable plinth.
There are other ways of achieving the same such as sand boxes as the sand moves and converts energy to heat and vibration is lost as sand moves this works well, but a metal frame works really well.
There are ways to say you disagree without being rude. I studied physic to advanced level then went to Uni so I have a fair idea which I am talking about that is where I "Get this from."
Regards
Chris
cafe latte
Addicted Member
Yep exactly that.
Chris
Getting back to the topic, one factor in addition to surface area is mass. You can only compare wood and metal if you take both into account.
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maxhifi
Addicted Member
I did the same, but I ripped the pieces from 2x6 SPF dimensional lumber I had laying around in the garage. Works very well, I'm happy with it.
cafe latte
Addicted Member
Not true, shape, density and even damping properties are all factors. Mass can be used to spread the energy but you are not eliminating it this is impossible, the turntable feet still pick it up. The frame as in the pic a few posts back can not store much energy, much less than a shelf of any kind.
Simple experiment (done it) place a class of water on your thick board and crank up music in the room from another source say a cd and make it really loud. Look at ripples on the water. Now place glass on one foot on the frame and try again. Ripples will be gone or much much less.
Chris
I will defer to your experimental evidence sir.
I will pick one nit, however. I may not have listed all the factors at play, but you can't say mass doesn't matter and then say that density does in the same sentence. The two are directly related.
In any case, the concept of energy 'storage' is quite interesting and I have not heard it presented in that way.
I will pick one nit, however. I may not have listed all the factors at play, but you can't say mass doesn't matter and then say that density does in the same sentence. The two are directly related.
In any case, the concept of energy 'storage' is quite interesting and I have not heard it presented in that way.
cafe latte
Addicted Member
I have an idler with a 45kg plinth this is spreading the energy to reduce its affect well kind of anyway. Looking at density of material relates partially to damping properties. A material with good damping properties is not eliminating the vibrational energy it is substances like Sorbothane that are good at converting that energy to another form like heat.
What we are trying to do is capture the least possible energy with the shelf hence the frame concept and between that and the turntable put something that will isolate really well such as Sorbothane. We cant do anything about the turntable plinth as it is part of the turntable, but we can avoid adding to its problems.
Chris
JamVal
Addicted Member
Same here. My listening room is built on a poured concrete slab and there are no ill effects from environmental vibrations. My normal listening level isn't that loud though. Well actually what my wife will allow.
What is the OP trying to isolate his deck from; environmental vibrations like footfalls or system/speaker vibration? I would think that the wood shelf solutions described above would work for the former. Man, what volume level are you cranked to when the water starts to ripple. I think my neighbors would step in if my wife hadn't already.
I'm not a physicist, but have 48 years experience in WAF. No offense but a metal shelf?
. Unless it looked something like this:
The shelf in post #6
The system in post #4
because it looks good and it's from a thrift store.
