What stand for LP12?

Posted by: jonni on 22 December 2002

My LP12 currently stands on a sound organisation turntable stand, the top shelf replaced by a Clearlight RDC shelf with a Audiophile base board on top of that.

I also have a Clearlight RDC rack with the rest of my equipment on it.The CD player is on the top shelf witch has a double laminated RDC shelf on top.
Now when I decided to try my LP 12 on top of the RDC rack it sounded awesome much better than on the sound org rack, even though the RDC rack was fully loaded with equipment.
There was much less grain and hash a more open and bigger sound with much more emotion and oumph to the music.The bad news is that the RDC rack sways when toutched which wouldn't be a problem except that there is a train line about 200m from my house and about 2 or 3 times a day heavy goods trians run past which shake the house slightly , but sends the LP12 when on top of the RDC rack flighing over the place ,not good news when a record is playing (my floor is concrete by the way) this does not happen on the sound org rack as it is rigid.
So are there any other solutions to racking my LP12 that will give as good a sound as my RDC rack or at least better than the sound org?
Can't use a wall shelf as there is no space on my wall anyware near the rest of the equipment , which of course the LP12 needs to be connected too.

[This message was edited by jonni on SUNDAY 22 December 2002 at 14:48.]

[This message was edited by jonni on SUNDAY 22 December 2002 at 14:48.]
Posted on: 22 December 2002 by jonni
Not a chance in Hell.Next please.
Posted on: 22 December 2002 by kan man
Mana works very well for me under my LP12. Having said that, I do suffer from footfall problems due to a suspended wooden floor and this seems to have got worse as I went from phase 4 to 7. I plan to get around this by strengthening the floor or building a dedicated extension to the house with a concrete floor.

By the sounds of it, the train must be rattling your whole floor slab so you may have problems with any sort of light and rigid support. Unfortunately these types are generally what the LP12 works best on. Suggest you try before buying if possible.

Regards
Steve
Posted on: 22 December 2002 by Mark Dunn
Hi all:

Liquidken wrote:

>You could always try the "suspended from the ceiling" method used by one particular madman on this forum.<

I would like to point out that clinically speaking I'm not mad, I'm 'different'.

Best Regards,
Mark Dunnb
Posted on: 22 December 2002 by Stewart Cooper
Jonni bach,

You appear to be on the wrong side of Malpas. Mark's approach is not quite so mad. Given your location you might at least consider the details.

Stewart
Posted on: 23 December 2002 by MarkEJ
...your room has a suspended floor doesn't mean that your gear has to be on a suspended floor. It sounds as if ground vibrations are setting the house off, and it is these amplified vibrations which are moving the floor about. If you could rest your stuff actually on the ground, you'd fix the problem.

We built a concrete plinth under our kitchen floor (suspended) for the washing machine to sit on, so that it's vibrations when spinning didn't affect the rest of the floor. Worked a treat, took about an afternoon to do.

Much depends on how far under the suspended floor the ground is. Ours was about a foot, but if yours is more, then you could start off with a few courses of bricks. Then you build some chipboard shuttering, and fill it with concrete, finishing flush with the existing floor level. Using a fairly smooth, wet mix for top bit makes it self-levelling. When set, fix some timbers arround the top of it to support existing joists, and tie everything in. Replace floorboards, cutting to fit arround your new platform. Job done -- no footfall, and floor-borne nasties don't reach the electronics.

Best;

Mark
Posted on: 23 December 2002 by jonni
Thanks for trying to help.I believe the vibrations , (which are at a very low frequency and only come from heavy goods trains not passenger trians like the inter city)are shaking the ground around the houses in my area, not just my house.
Maybe I should write to the county counsel about it.
I dont have any footfall problems and even heavy lorries out side my houses do not effect the turntable , I could jump up and down next to my rack even , the RDC stand and have no wobbles ,only the coal trians do this.
What kind of sound does the Mana rack have?I prefer the sound of the wood and RDC Clearlight rack to the metal Sound org one , which direction does the Mana lean too sound wize, as that is metal also?
Posted on: 23 December 2002 by Martin Payne
quote:
Originally posted by jonni:
there is a train line about 200m from my house and about 2 or 3 times a day heavy goods trians run past which shake the house slightly , but sends the LP12 when on top of the RDC rack flighing over the place ,not good news when a record is playing (my floor is concrete by the way) this does not happen on the sound org rack as it is rigid.



Jonni,

I've felt this effect at a friend's house - quite a surprise for the whole concrete floor to move.

I guess you need to find something that sounds good, but also resonates at a different frequency to the floor.

You *might* find that a shorter Clearlight would fit the bill?

cheers, Martin
Posted on: 23 December 2002 by Not For Me
I support the LP12, as do many others here on Mana. Phase IV on a concrete floor, in my case.

However, if you suffer wobbly floors, you might have sucess with a different solution.

In another situation, upstairs with suspended wooden floors, I have fixed an Audiotech wall shelf above a Sound Factory rack, so all the equipment is still together. The LP12 sits on the wall shelf above the rack. Get the positioning right and you can still use the top shelf of the rack as well.

Other companies do wall shelves - mana, Quadraspire, Hi-Fi News etc.

This will save dismantling the house to achieve a reasonable result.

DS
Posted on: 23 December 2002 by Mark Dunn
Hi all:

Liquidken,- no offence taken. My dad used to call me mad all the time. Either that or "you bloody stupid little sod..."

Jonni, MEJ's idea is a good one and not as mad(!) as it might look at first blush. I was recently working with a factory that produces animal feed where the hammer mills and pelletizers make one hell of a racket and cause the walls of their warehouse to shake. As my company was installing some fairly sensitive scales we asked the engineer what his plans were to isolate the scale area. He did pretty much exactly what MEJ suggests and it works so well that the goods trains that use the sidings not 30ft from our equipment have no effect.

Best Regards,
Mark Dunnn