(20-Jan-2019, 01:15)David A Wrote: Re stacked Devialet's and Oreas (bear in mind that I have no experience with Oreas, I'm basing my comments on experience combining other devices in stacks):
You basically have 2 options:
1- stack the Devialets normally, one on top of the other, and put one set of Oreas between the bottom Devialet and whatever it's sitting on; or
2- as above but add a second set of Oreas between the 2 Devialets. The bottom set should be rated to handle the total mass of both amps, the top set rated to handle the mass of one amp.
The main thing you are probably trying to do is to prevent vibration transmission between the amps and the shelf or whatever they're sitting on. Option 1 above works to do that. There's no moving parts in a Devialet so there's going to be little if any vibration produced internally so little vibration transmission between one Devialet and the other. If you get a benefit from the Oreas I think you will find that the biggest benefit will be with them placed between the bottom amp and what it's sitting on. I think you'll find you get a lot less benefit from a set placed between the 2 Devialet's and it may not help at all if there is no vibration transmission from top to bottom Devialet because the Devialet's have little internal vibration to start with.
If you want to try it, start with a single set under both amps, live with that for a few days to get used to it, and then try adding the set between the 2 amps. Live with that for a few days also to get used to it and see what you think, and then also try removing the second set and going back to the original setup with only one set of Oreas. See which way you prefer it. I don't think things will be significantly worse with 2 sets of Oreas arranged as in my option 2, but the result may also not be significantly better than your result with a single set of Oreas as in option 1. Since you currently don't have the second set you need if you're going to try it, either borrow a second set to test or make sure you can return the second set if you have to buy them.
David,
You have described the process that I followed when first using the a single set of Orea rated for the weight of two stacked Devialet and then a couple of weeks later adding the set between the two. The second arrangement with two sets is far better than a single set below the stacked pair. You can see the pix on the Orea thread.
