Have many of you filled in your support poles? If so, did you just use sand or did you use something else? I was thinking of using Great Stuff to prevent the pole from ringing, but I don't know if that would work so well. I know others have used sand and those poles don't ring one bit.

Is it worth the trouble? If the pole is inside a wall, is it even going to resonate? Should I simply just stuff insulation around it and call it a day?

What are you thoughts?

Never thought of it. Mine is unfilled, surrounded by insulation and behind DD+GG. In limited listening/testing I didn't notice anything ringing.

Filled mine. It resonated during the early stages of my build with each hammer stroke (on nails about 15 feet away from the pole). So I drilled a small hole at the top and rigged a funnel system. It did not take too long and eliminated all resonating. Now there is just a solid thud if I hit the pole directly with the hammer.

Of note, this pole is inside my room behind the screen wall. If the pole was built into the wall I am not sure if all of this would of been necessary.

Filled mine. It resonated during the early stages of my build with each hammer stroke (on nails about 15 feet away from the pole). So I drilled a small hole at the top and rigged a funnel system. It did not take too long and eliminated all resonating. Now there is just a solid thud if I hit the pole directly with the hammer.

Of note, this pole is inside my room behind the screen wall. If the pole was built into the wall I am not sure if all of this would of been necessary.

So the pole is open in your room, although hidden from view? In is going to be complete closed in the wall and all sides.

I go back and forth on this. On one hand, I'm thinking that the sound getting into that cavity are fairly low, especially with the 2 layers of drywall and insulation in there. On the other hand, I would really find it annoying if, after all that work to minimize sound escaping, that a resonating support pole is basically send unwanted sounds to the first floor or, worse yet, sounds from upstairs coming down through the pole.

Yep, inside the room, but hidden. You can see it here:
http://i88.photobucket.com/albums/k181/mbgonzomd/IM004682.jpg

If you choose to do it, it will take about 1 1/2 bags of play sand and about an hour of your time.

Tell the truth Gonzo - hidden but accessible complete with disco ball, right?

Yep, inside the room, but hidden. You can see it here:
http://i88.photobucket.com/albums/k181/mbgonzomd/IM004682.jpg

Tell the truth Gonzo - hidden but accessible complete with disco ball, right?


You know it! But if the wife asks, it is so I could make the room a little longer:)

Unfortunately, I will have a pole inside the theater room itself (directly next to the front row of seating). I opted to fill it with sand; partly so that it wouldn't "ring" with impacts in the room and partly to help with sound transmission to the rest fo the house. The lolly column is tied to a steel beam that spans the length of the house - this seems like it woudl be a good consuctor of sound with no treatment.

Additionally, the column will be concealed inside of a wood column for aesthetics.

So is the general concensus that:
- If the pole is in a wall, don't worry about it. Just insulate around it and call it a day.
- If it's open in the room, fill and wrap.

Just FYI...
I believe it is against building coded to drill any hole in a support pole.

No your houose probably won't collapse but don't tell the inspector and clean off any evidence.

Yeah, I thought about that too. The pole in question already had a couple of small holes from the previous owner, so I just followed his lead:)

- If it's open in the room, fill and wrap.

Effective wrapping to prevent pole ringing.

http://www.polefederation.com/australia/img/hero_3782.jpg

http://law.onecle.com/wp-content/uploads/2007/01/no-pole-dancing.jpg

Stop the presses. There is money to be made in pole dancing classes. May be more entertaining then Seinfeld reruns.

http://www.mypoledanceschool.co.uk/classes.html

http://www.mypoledanceschool.co.uk/gallery01.jpg

I'm wondering if that stage is sand filled

I have 2 of them on the one side of where my theater is going to be, I was planning on lining them with a few strips of dynamat to effectively stop the ringing

Mine are just wrapped in carpet. They chime if I hit them with good force. They don't ring with any audio that I have ever noticed. I was running the LFE at 92db the other day with the other speakers off and I would have noticed as I had heard that before prior to the carpet. It's just outdoor carpet glued on by some pro. It would be interesting to see what it would take in order for them to. Mine are off to one side of the room just enough to see the screen from any seat.

I will put in a rave cd, crank up the volume, and put my ear up to it and see what happens.

Measuring nearly the same at 90db at each pole with only the sub, I feel them moving plenty but no noise.