Or retrofitting a pro woofer (of course the excursion would be kept in check)...
Power compression should be reduced, at least.
Power compression should be reduced, at least.
Hi
Unless it's used in a low power midrange the fluid would get blown out of the gap reducing the heat flow benefits of the oil itself. Unless you could ensure this from happing ... I'm really not sure what you are asking/ getting at. Seems most VC power is dissipated by the air flow across the coil and former itself, so wouldn't it be a net loss if using oil for this application as it would block air movement. But like anything else it depends upon all the other factors/details as well?😕
Unless it's used in a low power midrange the fluid would get blown out of the gap reducing the heat flow benefits of the oil itself. Unless you could ensure this from happing ... I'm really not sure what you are asking/ getting at. Seems most VC power is dissipated by the air flow across the coil and former itself, so wouldn't it be a net loss if using oil for this application as it would block air movement. But like anything else it depends upon all the other factors/details as well?😕
Unless there is inherent forced-air cooling (such as the dust cap forcing air through notches/vents in the pole piece of JBL's VGC woofers), ferrofluid should conduct heat away from the voice coil much more efficiently, since the thermal conductivity of air is less than almost anything except other gases.
A wise man once said "Identify and characterize a problem before you attempt to solve it".
I think this is more complicated than I know how to handle with out empirical data. As you pointed out movement might be a problem here. Possibly adding shearing forces to the oil and it's solid content perhaps reducing it's effectiveness. It's benefits to tweeter design is well known allowing the VC and former to be lighter at higher power levels.
Thermal compression is the problem then devise a test to see how bad it is and if the oil can be a solution indeed.
I think this is more complicated than I know how to handle with out empirical data. As you pointed out movement might be a problem here. Possibly adding shearing forces to the oil and it's solid content perhaps reducing it's effectiveness. It's benefits to tweeter design is well known allowing the VC and former to be lighter at higher power levels.
Thermal compression is the problem then devise a test to see how bad it is and if the oil can be a solution indeed.
Hi,
My observation is that if something works people do it.
Ferrofluid damped woofers don't exist, tells me it doesn't work.
🙂/sreten.
My observation is that if something works people do it.
Ferrofluid damped woofers don't exist, tells me it doesn't work.
🙂/sreten.
sreten said:
Good thing the innovators don't think like this, else we all would be living like the Amish.
Maybe not a bad thing (Amish) on the other hand.
Hi,
I know at least one pro audio manufacturer who uses ferrofluid in their woofers namely Community.
Se for example this Pro sub:
http://www.community.chester.pa.us/...df?PHPSESSID=036e7e199bd2e09d3034e616cc06391f
Would be interesting to see their solution in more detail.
I know at least one pro audio manufacturer who uses ferrofluid in their woofers namely Community.
Se for example this Pro sub:
http://www.community.chester.pa.us/...df?PHPSESSID=036e7e199bd2e09d3034e616cc06391f
Would be interesting to see their solution in more detail.
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