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+--- Thread: IsoAcoustics OREA isolation footers (/Thread-IsoAcoustics-OREA-isolation-footers)
RE: IsoAcoustics OREA isolation footers - Wdw - 02-Feb-2019
(28-Jan-2019, 23:16)Confused Wrote: Some light reading per the link below. This paper explains why products that use crystal oscillators are sensitive to vibration, and in a way that is conceivably bad for audio. I believe that Devialet use crystal oscillators, but I have no idea what type. Does anyone know? Anyway, this does provide some insight as to why Devialet amps might benefit from isolation. A while ago I read an article about isolating GPS control systems from vibration in guided missiles, this explained very similar issues per the link attached.
https://tf.nist.gov/general/pdf/2328.pdf
Someone mentioned that power supplies, when cycling in and out, are a possible cause of vibration, albeit quite modest. I know that Nordost recommends the first use of their Sort Kones be placed under the QBase power bar before under anything else in the system.
I have a suspicion that most audio gear can benefit from this kind of design.
RE: IsoAcoustics OREA isolation footers - audio_engr - 03-Feb-2019
(02-Feb-2019, 22:47)Wdw Wrote: Someone mentioned that power supplies, when cycling in and out, are a possible cause of vibration, albeit quite modest. I know that Nordost recommends the first use of their Sort Kones be placed under the QBase power bar before under anything else in the system.
I have a suspicion that most audio gear can benefit from this kind of design.
I thought this thread was strictly about IsoAcoustics OREA ? wasn't it (as you'd pointed it out earlier).
RE: IsoAcoustics OREA isolation footers - Wdw - 03-Feb-2019
(03-Feb-2019, 01:31)audio_engr Wrote:(02-Feb-2019, 22:47)Wdw Wrote: Someone mentioned that power supplies, when cycling in and out, are a possible cause of vibration, albeit quite modest. I know that Nordost recommends the first use of their Sort Kones be placed under the QBase power bar before under anything else in the system.
I have a suspicion that most audio gear can benefit from this kind of design.
I thought this thread was strictly about IsoAcoustics OREA ? wasn't it (as you'd pointed it out earlier).
well it is about Orea and by extension isolation. I was responding to Confused's mention of the crystal in the DAC and this as a possible explanation of why these footers are effective. I am baffled, as many are, as to why these isolators have such an obvious impact on a solid milled chassis. Did you install yours? How are they sounding?
Best
RE: IsoAcoustics OREA isolation footers - ICUDoc - 05-Feb-2019
(02-Feb-2019, 20:34)mdconnelly Wrote: IsoAcoustics OREA Bronze are in the house! Just got 2 sets of three for each of my 220 Pros (e.g. 440 Pro). I have them setup separately so I put 3 OREAs under each - one in front and two in rear. I don't want to exaggerate what I hear, but to my ears and in my system, the difference (improvement) was pretty obvious with the first track I listened to. Better clarity and bigger soundstage. More air between instruments and voices. While this is not night and day difference, it is a very nice improvement. What surprised the most was the improvement in top-end clarity and harmonic decay. The extended shimmer of cymbals, decay of plucked strings or taps on triangles... was quite noticeable and unexpected.
No need to add what I hear using these supports= mdconnelly has described it perfectly.
I am surprised but pleased.
Not cheap in Australia, but worth it. Once you use Devialet 400 or better, improvements become more expensive!
RE: IsoAcoustics OREA isolation footers - Philb - 05-Feb-2019
I have $10 Aldi door stops under my 400 amps - they have very impressive heft.
RE: IsoAcoustics OREA isolation footers - JohnnySix - 05-Feb-2019
I've seen one review in which they said the sound was adversely effected by under-loading the pucks, and I tend to agree. I only ordered two Bronzes, because I've often heard improvements by just propping up the back of a unit on various supports (and it angles the Devialet so I can see the window better).
So what I don't get is, if you put a 6Kg Dev on three of them, they are each only loaded about 2Kg, which is well under half load, and they are not operating maximally.
RE: IsoAcoustics OREA isolation footers - mmorrison55 - 05-Feb-2019
I suppose you could try and balance your unit on one isolator, but for practicality the minimum would be 3 for a steady footprint.
So as I understand, using 3 you could then isolate up to a 24kg. I don’t think many amp manufacturers make an amp as small as the devialet, so isoaccoustics is trying to appeal to the masses. But you are correct that if isoaccoustics made a smaller 3kg version than the bronze series it would be ideal for our amps.
And propping up with two as you plan may work, but I would think you need some kind of isolation in the front to take full advantage. Maybe a silicone “dot” that just raises and isolates the front edge a few mm’s.
RE: IsoAcoustics OREA isolation footers - Norty - 07-Feb-2019
(05-Feb-2019, 19:20)mmorrison55 Wrote: I suppose you could try and balance your unit on one isolator, but for practicality the minimum would be 3 for a steady footprint.
So as I understand, using 3 you could then isolate up to a 24kg. I don’t think many amp manufacturers make an amp as small as the devialet, so isoaccoustics is trying to appeal to the masses. But you are correct that if isoaccoustics made a smaller 3kg version than the bronze series it would be ideal for our amps.
And propping up with two as you plan may work, but I would think you need some kind of isolation in the front to take full advantage. Maybe a silicone “dot” that just raises and isolates the front edge a few mm’s.
The attached chart shows the effective range of weight for if each of the products. A 220 comes in about 13 lbs, so bronze should be well within the effective range. Especially there is likely some extra weight at the back from the variouscords.
[img]blob:https://devialetchat.com/512e30a1-f76b-400e-b456-fa61145d294e[/img]
RE: IsoAcoustics OREA isolation footers - Norty - 07-Feb-2019
(07-Feb-2019, 03:35)Norty Wrote:It appears that chart did not come through, but it is on the website. Sorry my technical skills are not up to the level of many of you on this board(05-Feb-2019, 19:20)mmorrison55 Wrote: I suppose you could try and balance your unit on one isolator, but for practicality the minimum would be 3 for a steady footprint.
So as I understand, using 3 you could then isolate up to a 24kg. I don’t think many amp manufacturers make an amp as small as the devialet, so isoaccoustics is trying to appeal to the masses. But you are correct that if isoaccoustics made a smaller 3kg version than the bronze series it would be ideal for our amps.
And propping up with two as you plan may work, but I would think you need some kind of isolation in the front to take full advantage. Maybe a silicone “dot” that just raises and isolates the front edge a few mm’s.
The attached chart shows the effective range of weight for if each of the products. A 220 comes in about 13 lbs, so bronze should be well within the effective range. Especially there is likely some extra weight at the back from the variouscords.
[img]blob:https://devialetchat.com/512e30a1-f76b-400e-b456-fa61145d294e[/img]
RE: IsoAcoustics OREA isolation footers - Wdw - 07-Feb-2019
From technical support at IsoAcoustics, 3 Bronze are ideal for a 220.