Local company is offering magnetic feet for speakers or turntables, decoupling them from vibration transmission, by having the component "maglev" from the table or floor.
I can't find the weight limit, but I read someone who tried with 39kg speakers.
For those of you who want to decouple their speakers from the floor or shelf... or keep the turntable away from any house vibration.
The company is called HLJ.
I can't find the weight limit, but I read someone who tried with 39kg speakers.
For those of you who want to decouple their speakers from the floor or shelf... or keep the turntable away from any house vibration.
The company is called HLJ.
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Hi Perceval!
Do you know how the vertical levitation works without relying on physical sideways contact for stability?
Do you have a link to HLJ?
I have found another 'magnetic levitation' product here: Magnetic levitation feet for hifi isolation 4x10Kg load | eBay
Do you know how the vertical levitation works without relying on physical sideways contact for stability?
Do you have a link to HLJ?
I have found another 'magnetic levitation' product here: Magnetic levitation feet for hifi isolation 4x10Kg load | eBay
I presumed sideways could be handled the same way? It would be interesting to know how effective they are.
The simplest example of lift using two paramagnetic dipole magnets repelling is highly unstable. The top magnet can slide sideways. No configuration of magnets can produce stability.
To ensure stability requires the use of diamagnetic materials, superconduction, or systems involving eddy currents.
If the lifting force is provided by magnetic levitation, but horizontal stability is provided by mechanical support, this is called pseudo-levitation.
Pseudo-levitation will be the system employed in the magnetic feet under discussion. They may reduce vibration transmission, but can't totally eliminate it.
To ensure stability requires the use of diamagnetic materials, superconduction, or systems involving eddy currents.
If the lifting force is provided by magnetic levitation, but horizontal stability is provided by mechanical support, this is called pseudo-levitation.
Pseudo-levitation will be the system employed in the magnetic feet under discussion. They may reduce vibration transmission, but can't totally eliminate it.
I'm tight with money, I'd go for coil spring based idolaters under the speaker, which sit on a wider heavy base ( concrete slab ? ) that itself sits on coil springs. If I did go for the magnetic style, I'd check the magnetic forced around it to make sure that they don't interfere with iron chokes inside the speaker.
To be of any use a decoupling device should come with measurements, otherwise we are ******* in the wind.
I reckon there are too many variables to allow meaningful measurements to be made. Convenient or not? 😉
They're a bit too expensive for me, but these NeoLev decouplers would add a touch of 'je ne sais quoi' to any system:
TritonAudio NeoLev – Thomann UK
They're a bit too expensive for me, but these NeoLev decouplers would add a touch of 'je ne sais quoi' to any system:
TritonAudio NeoLev – Thomann UK
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I would expect the physics of a magnetic damping system to be similar to a spring damping system.
So, as you must know Matt, the resonant frequency depends on the mass and the 'spring' compliance.
So, as you must know Matt, the resonant frequency depends on the mass and the 'spring' compliance.
Probably similar, so they're basically expensive springs, if the frequency's low enough they should do a good job.