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Post by ChrisB on Aug 18, 2014 12:54:22 GMT
Hmm, ok but, sometimes the location of the controls means that stability can be compromised if you actually want to use the device.
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Post by danielquinn on Aug 18, 2014 13:52:39 GMT
Sorry I dont understand .
Most boxes are rectangle with the controls at the front . it is common to place 1 at each rear corner and 1 in the front middle . Now if the weight distribution is challenging [ say for instance a lot of weight at front to one side ] , then as I said if you place one directly under the heavy part and then place the other two a points which will make the largest triangle possible , the box will be a stable as if four supports were used .
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Post by Dave on Aug 18, 2014 15:01:41 GMT
I tend to use one under each front corner and one in the middle to the rear of the equipment. Not had any problems with this arrangement as yet plus it looks neater to me (I am a slave to aesthetics, sad but true... hehe)
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Post by ChrisB on Aug 18, 2014 17:33:37 GMT
Sorry I dont understand . Most boxes are rectangle with the controls at the front . it is common to place 1 at each rear corner and 1 in the front middle . Now if the weight distribution is challenging [ say for instance a lot of weight at front to one side ] , then as I said if you place one directly under the heavy part and then place the other two a points which will make the largest triangle possible , the box will be a stable as if four supports were used . Yes, all that you say is correct. OK, now apply a rotational force to a knob on the same side as the heaviest part of the unit, or change a valve, or plug/unplug a cable. Suddenly, the stability can be compromised in some cases because the forces that you have so carefully balanced are not the same. If the supports are tallish, then tipping over can be catastrophic.  |
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Post by Paul Barker on Aug 18, 2014 18:58:46 GMT
True it is what you say.
For an object not moving with no cats or hamfisted knob turners. As it stands alone, it is most stable on three points of contact. Ask any photographer or milk maid.
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Post by ChrisB on Aug 18, 2014 19:17:43 GMT
Yep, 3 is usually fine and good!
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Post by MikeMusic on Aug 19, 2014 10:08:42 GMT
Has anyone tried these? They look to be very well manufactured for the price, them being machined billet alu with a low carbon steel ball. Dave did you manage to buy these ? I click on them to watch, but get my user and password details up which are then refused. As of last weekend I have this with anyl overseas sellers. Can't Watch, Ask a question or Buy All fine with UK items |
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Post by Dave on Aug 19, 2014 11:02:38 GMT
According to my missus who knows about these things it will be one of two issues: Either the seller doesn't ship to the UK or your ebay settings have changed so you can only buy from UK sellers. Click on your Account tab and check your settings Mike. If it's neither of those you will need to ring ebay and get them to check that all is well with your account, they usually deal with this sort of thing promptly. If you are unsure of any of this the missus has authorised me to give you her mobile number so you can give her a bell, she will talk you through what you need to do  I haven't bought the supports as yet Mike as we are up to our eyeballs this week but I intend to soon  |
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Post by MikeMusic on Aug 19, 2014 11:55:31 GMT
Thanks Dave The seller has shipped to the UK and I have watched his items before. As of last weekend I cannot watch items from USA, Germany, Taiwan and some others. UK is all fine. I changed nothing Ebay told me to clear browser settings just now, online chat, didn't work. Came out of Chrome and went back in, didn't work So maybe complete reboot, then something else as unlikely to be that simple and then on and on for a bit longer taking my time.....  Did I tell you I can stand next to things and they go wrong ? EDIT And with me doing nothing else apart from giving it another go* - it works *Level 1 Tech support |
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Post by Dave on Aug 19, 2014 12:21:25 GMT
Thanks Dave The seller has shipped to the UK and I have watched his items before. As of last weekend I cannot watch items from USA, Germany, Taiwan and some others. UK is all fine. I changed nothing Ebay told me to clear browser settings just now, online chat, didn't work. Came out of Chrome and went back in, didn't work So maybe complete reboot, then something else as unlikely to be that simple and then on and on for a bit longer taking my time..... Did I tell you I can stand next to things and they go wrong ?A bit like me and pot plants then, I only have to look at them and they die... 
Try using a different browser to access ebay Mike. I used to be an avid user of Chrome until around five months ago when an update screwed it up royally. I then moved on to using Firefox but it has text sizing issues with Win7 so these days I use IE (even though I dislike it) as it appears to be the most reliable browser out there just now.
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Post by MikeMusic on Aug 19, 2014 14:35:40 GMT
I've tried them all and ended with Chrome is favourite, IE reserved for banking.
'Course is was ok and now it's knackered again
I'll Google for it. You never know.....
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Post by Paul Barker on Aug 19, 2014 18:54:12 GMT
According to my missus who knows about these things it will be one of two issues: Either the seller doesn't ship to the UK or your ebay settings have changed so you can only buy from UK sellers. Click on your Account tab and check your settings Mike. If it's neither of those you will need to ring ebay and get them to check that all is well with your account, they usually deal with this sort of thing promptly. If you are unsure of any of this the missus has authorised me to give you her mobile number so you can give her a bell, she will talk you through what you need to do I haven't bought the supports as yet Mike as we are up to our eyeballs this week but I intend to soon I managed to buy them. Apparently they are shipped. so seller definately sells to UK. Must be a profile setting which has got itself switched. |
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Post by MikeMusic on Aug 19, 2014 19:57:19 GMT
I've bought some stoppers from them, hopefully a set of supports too
But testing to see if I can watch items again - I can't. Me and computers.....
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Post by MikeMusic on Sept 2, 2014 8:26:01 GMT
RDC cones
Got a set to try out.
Under the Isis they are slightly better than Superpods. I'll check that soon.
Superpods are big and high so cannot put them anywhere if height is restricted.
Tried the RDCs first on the Chord power amp, where the Superpods made minimal if any difference.
Nice. Opened up the sound with more air and detail all round.
Went back to the Chord on it's own feet, closed down, 'ordinary' sound, lacking dynamics.
You wouldn't want that once you heard the RDCs in place.
Only have one set so no RDCs was the baseline for the next step, going under the P10.
The same sort of sound improvements, almost identical.
Could this be the same amount and type of noise generated by the kit I wonder.
Now the surprise, for me at least.
Being silly I put some Ry Cooder in concert through the Tivo.
Assumed there would be little or no difference
Staggering improvement in sound quality. So much so that we forgot to check to see if the picture was improved.
A much more complete sound.
Without the RDCs the sound was broken, incomplete
More noise in the Tivo being sorted ?
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Post by MartinT on Sept 2, 2014 10:01:51 GMT
I assume you're using the Tivo's analogue outputs (internal DACs), in which case there's a lot going on there, what with the spinning HD and all the electronics. The RDCs will be damping and coupling all that to your stand (assuming point-down).
Does the Tivo have S/PDIF digital outputs, either co-ax or optical?
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Post by MikeMusic on Sept 2, 2014 10:19:17 GMT
That explains it then, very busy and noisy
Analogue only for my original Tivo.
Point down and sitting on a Mana rack
Tried the RDCs on the Sony Freeview box (Linux ?), but difficult to judge as I could only get live, so different.
Will try recording the same programme with and without RDCs under the Sony
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Post by MikeMusic on Sept 6, 2014 10:18:56 GMT
Test last night
Chord power amp up first
then with RDC cones under
Small/medium improvement to smoothness and detail, particularly in the mid range. Keeper
Next Isis on Superpod compared to RDC cones
Much as above and referring back and forth a few times, that smoothness with RDC cones replaced by a jagged, missing information presentation with Superpods.
Suprepods seem to be giving more bass, but that might be because the RDC cones improve the detail and midrange so it appears the bass is lessened. Could also be the bass is wrong - or right !
More tinkering tomorrow
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Post by MartinT on Sept 6, 2014 11:19:37 GMT
I have more RDCs coming, Mike. Will definitely try them under the Ayre.
By the way, very thin double-sided tape across the whole area where you need to stick an RDC to the base of a component works very well to hold them in place, without affecting their mode of operation which is to bear the weight around the circumference only.
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Post by MikeMusic on Sept 6, 2014 11:58:52 GMT
I think the RDCs are the good 'mid price' compromise between dead cheap cones, fantastic VFM, Pods of varying sizes and at the other end Stillpoints, that work best (of what I've tried) but cost
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Post by Paul Barker on Sept 8, 2014 9:07:51 GMT
Has anyone tried these? They look to be very well manufactured for the price, them being machined billet alu with a low carbon steel ball. Collected mine from post office this morning. They are reasonably well made but not as good as they could have been. The machining is not smooth on the piston area exactly where you really want a mirror finish. It is hard to believe there is sufficient free play for the roller ball to work as intended. The rubber 'O' ring seems stiff and the tolerance tight so little if any lateral motion allowed. But the ball bearing system requires vertical force to be transferred in lateral movement. So I am doubtful that these are geting the best of that style of support. the ultimate of "that style of support" is a pair of spoons, one stuck to the stand one stuck to the equipment a marbel placed between the two, X 3 per piece of equipment. This transfers all vertical forces into lateral motion. It occurs to me that more freedom to roll laterally would be facilitated by grease in place of the 'O' ring. Reading the above you will see my very diy approach to this world. In terms of cost and some functionality, possibly sufficient for most situations, these supports are worthwhile purchase. But in terms of what I know of the mechanics, a long way from perfect. At some point the lack of freedom to dissipate the energy laterally will impede the ability of the bearing to function. For an alternative off the shelf purchase a set of three spike would probably match these or may improve on them. The diy bearing method (like so many diy versions of all these ideas) with total freedom is likely to better this OEM equipment. It is hard to envisage that any other way. OEM's have to produce a neat package that your pressy other OEM equipment looks cool to you and people you want to impress on. It is not solely about function but form and esthetics play a large roll. As does the necessary accompanying snake oil. that said I bought two packs of 4 which means I need 1 more unit for 3 equipment supports. Or to put it anouther way I have 2 surplus units. So if anyone has one surplus they wish to sell me or wishes to purchase my spare 2. I am open to offers. |
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