Too much of a vibration...

This is the stand if it helps...

Taken from their website, the Arcam is not mine!

Are all four legs of the stand firmly on the floor or does the stand wobble?
Is the stand completely horizontal?
Are all four feet of the CD player firmly on the shelf or does the player wobble?

If there are no problems I'd speak to your dealer for reassurance, or rectification if there is a problem.

Of course upgrading to a CDS3 with no drawer will also solve the problem

Seth

Hi Stevie

Very strange - concrete floors do not move or vibrate.

Does the drawer look 'centered' in its aperture when closed?

Are you able to make it make contact with the aperture by gently grasping the 'door knob' and exerting pressure up and down?

If so; the machine needs to meet it maker again.

Another thought - as Seth has pointed out; the hard metal feet of the CDX2 need a perfectly flat surface to make good contact.

Sometimes the case of the player is to blame, and Naim have to add a shim to the relevant foot, to stop it 'rocking'.

Let us know.

Do the legs have spikes that go through the carpet? If not, the stand is probably wobbling as the carpet depresses when you walk by.

- GregB

Insert Witty Signature Line Here

quote:

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Originally posted by Maxi Me:
Are all four legs of the stand firmly on the floor or does the stand wobble?
Is the stand completely horizontal?
Are all four feet of the CD player firmly on the shelf or does the player wobble?

If there are no problems I'd speak to your dealer for reassurance, or rectification if there is a problem.

Of course upgrading to a CDS3 with no drawer will also solve the problem

Seth

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Seth

All four legs are straight, with spikes on each going into the carpet. The rack has had the spirit level treatment and is completely level. There is not any rock in the system as well.

The CDX2 was installed by the dealer as it replaced a faulty one. This was only replaced on Tuesday and the CD drawer is completely level.

To be fair, the carpet around the rack has to be slapped firmly to cause the noise but clearly some of the impact is moving up the structure of the rack.

Thanks

Stevie

Stevie

You might want to check that the legs themselves are clear of the carpet, with only the spikes touching it. To get the spikes firmly on the floor it is a good idea cutting a slit in the carpet and underlay with a Stanley knife. Finally you should check that the table is not flexed. You can do this by looking at the feet of the CDX2 against the light and seeing if there is a tiny gap under one of them. If there is a gap you can slightly lengthen the spike on the relevant leg, keeping the whole thing level of course. This happened to my Quadraspire Reference which is a pretty flexible affair, and from the look of your stand it may be similarly affected.

Hope that helps

Nigel

I hear the word Fraim.......................

JN Said "concrete floors do not move or vibrate"

I live in a fourth floor flat with solid concrete floors and they most definitely vibrate.

Cheers Robert

Yes Robert; a good point.

I'm thinking of my own situation with a concrete floor attached to the ground!

Over to you again Stevie.

I used to have the three-legged, four-tier Optimum 2000 before I upgraded to Quadraspire Reference, and something inside my Densen B200 preamp used to rattle (I think it was a loose ribbon to which a phonostage could be connected) each time I walked around in my room with a suspended wooden floor. Having only three legs, my rack was not rocking as may be the case with yours.

Check that all four spikes are making firm contact with the floor beneath the carpet. Also, it may be a good idea to rebuild the rack from scratch and avoid overtightening the rods - the manufacturers themselves actually offer this advice.

TBH, the CDX was never happy on Optimum and only became the clear no-brainer that it really is over a CD5/FC2 once I'd replaced the Optimum with the Quadraspire Reference. As well as hearing more music on QS Ref (a CD5/FC2 on QS Ref sounds superior to a CDX on Optimum without any doubt, imho) the B200 stopped rattling when I walked around in the room.



Regards,

Steve.

1) The feet are adjustable on the Optimum racks (that is if yo've got the screw-in spikes).
2) I've got Stands Unique Carbon Isolators under my CDX, 82 & 250. They make a HUGE difference. (There are 3 per set, which might help the stability thing too...)

Paul

Hi all

I have spikes at the bottom of my rack which leave the main legs well clear of the carpet. All my units are sitting cleanly on the glass.

The whole rack was taken apart last night and re-assembled with your tips about trying not to overtighten etc and there is still a problem there. I think a call to the manufacturer may be in order....

Stevie

Hi All

I have just spoken with a guy from Optimum who basically said that in 8 years of making stands they have never encountered this so it can't be the stand.

He then asked me what spikes I was using and it turns out that they are not the spikes that should be used . He is popping a new set out to me today but I am a little unsure how one type of spike would be better than another.

Looks like the rack will be taken apart again this weekend. Oh the joy.

Stevie

Mr D,
Having just been investigating on your behalf i have made a discovery.

If you open the dawer on your CDP and tap it gently downwards the laser wobbles about a bit and can clunk as it gets to the end of its travel. This was the only rattling i could get out of it!

let me know how you get on.

_______________
Hmmm, upgrades.

Yoda

I tried what you sudgested and all seems to be fine with the tray/ laser. I really think the problem lies with the stand. The new spikes I sent were silly as they were not actually spikes just small blunt screws to fill the hole at the bottom of the legs.

After discussions with the Missus over the weekend it has been decided that after we move a new rack could be brought in. As you know after seing my rack it would make quite a nice coffee table with a built in magazine rack/ shelf, if you take the top tier off!

Still no suitable house yet though

See you later

Stevie

It may still be worth trying three feet under the CDX - you could just use anything handy (eg. Lego blocks, bits of wood, pebbles) just to see if it resolves the clunking.

Paul

Paul

Is the idea of this to lift the unit off the feet slightly

Thanks

Stevie

Yes
My thinking is as follows:
1. Perhaps it's the 4 feet under the CDX that's the problem, so putting 3 anythings under there would test that.
2. I've got those carbon isolators under mine and they make a HUGE difference! They're just slightly tallet than the Naim feet so they lift the unit a bit higher.
3. If 3 whatevers sort your clunk, then I'd recommend the thingies I've got.

Paul

Paul

Sorry to be a pain in the backside but would something like this be what you are describing?