Hi,
i tought that if someone could invent some subwoofers with "Hg" as a voice coil it would be infinite power? no? because the "liquid wires" cannot melt....is it a good idea???
-Guillaume
i tought that if someone could invent some subwoofers with "Hg" as a voice coil it would be infinite power? no? because the "liquid wires" cannot melt....is it a good idea???
-Guillaume
I suppose that the voice would be pretty big (the "tube" or insulator containing mercury would be much more thicker than a simple coat of varnish on copper wires) and would probably weight much more than a standard voice coil. When power is applied, it will probably heat up just like copper. Liquid would not melt but the insulator sure will.
Of course, it's only suppositions.
Moreover, is there any need for 5kw speakers when you can achieve 120+dB with a good horn design ? 😕 http://www.diyaudio.com/forums/showthread.php?postid=165009#post165009
Your suggestion could be a nice idea for someone who would like to experiment about PA but would it fit a real need in Hi-Fi ?
Keep ideas coming 🙂
Of course, it's only suppositions.
Moreover, is there any need for 5kw speakers when you can achieve 120+dB with a good horn design ? 😕 http://www.diyaudio.com/forums/showthread.php?postid=165009#post165009
Your suggestion could be a nice idea for someone who would like to experiment about PA but would it fit a real need in Hi-Fi ?
Keep ideas coming 🙂
Well, how about a voice coil wound from copper tube, and have mercury pumped in one end and out the other, then off to a heat exchanger to be cooled and then back to the voice coil. Or maybe use liquid sodium?
"Ya gotta be hot to be real cool".
"Ya gotta be hot to be real cool".
Why are we, DIYers, even talking about Mercury? It's one of the most toxic substances there is... don't say you all are actually thinking of playing with the stuff!
I, for one, would be really interested in seeing some crazy cooling designs on speakers (vented pole piece and dustcap, and a fan blowing through to cool everything? A 2-way water tube (send = outside, return = inside) that gues through the pole piece? Or IS the pole piece?
The design on this would be insane, and I think for the DIY people, it's going to be simply out of reach...
but, of course, I'm interested if anyone does it. 🙂
I, for one, would be really interested in seeing some crazy cooling designs on speakers (vented pole piece and dustcap, and a fan blowing through to cool everything? A 2-way water tube (send = outside, return = inside) that gues through the pole piece? Or IS the pole piece?
The design on this would be insane, and I think for the DIY people, it's going to be simply out of reach...
but, of course, I'm interested if anyone does it. 🙂
yeah that'S true. but we could build a tungstene voice coil...is it very conductible? anyway the watercooling idea is better hehe
one day when i'll have time and materials i'll probably build one ...watercooled or just mod it 😀
one day when i'll have time and materials i'll probably build one ...watercooled or just mod it 😀
the liquid metal has no advantage here. it only adds mass to the voice coil. water would be better. takes more thermal energie away and is only 1g/ccm. what about liquid helium?
but i don´t understand for what this wattage is needed.
Well, if the only intension is to have a driver motor with insanely high power handling then why not design something with superconductors.
It's not too difficult to successfully cook up some copper-oxide superconductors. After that it's only a matter of designing a suitable motor structure arrangement, incorporating some liquid nitrogen cooling and everything else that DIY audio can entail.
Then again, the probable efficiency of such designs would not require any high power amplifiers.
hmmm....
Actually, this could be very interesting. It would be fun to design a loudspeaker with superconductive elements. Create an open-baffle system, remove the surround and spider - suspending the cone or diaphragm with again, superconductors. It could be the start of a whole new family of full-range drivers.
It's not too difficult to successfully cook up some copper-oxide superconductors. After that it's only a matter of designing a suitable motor structure arrangement, incorporating some liquid nitrogen cooling and everything else that DIY audio can entail.
Then again, the probable efficiency of such designs would not require any high power amplifiers.
hmmm....Actually, this could be very interesting. It would be fun to design a loudspeaker with superconductive elements. Create an open-baffle system, remove the surround and spider - suspending the cone or diaphragm with again, superconductors. It could be the start of a whole new family of full-range drivers.
But that requires a lot of LN, doesn't it? And that cost would not just be the cost of the driver, but the cost over time, or refilling your LN supply, wouldn't it?
Interesting, yes... but probably only good for PA / club installation.
Interesting, yes... but probably only good for PA / club installation.
Yep, insanely impractical. It's just an entertaining idea... Mostly inspired by the fact that I had spent the better part of this term making and testing superconductors in our physics labs.
I mentioned this one once before but I can't see where it is now... Something I think would work well and would be within the realms of diy is to drill a small hole in the back magnet plate of the speaker that finishes in the bottom of the voice coil gap. Inject a gentle flow of compressed air in through the hole so that it would pass by the voice coil on it's way out of the front of the speaker. Hopefully this would help the cooling of both the coil and the whole magnet structure. As for any noise, you could have it set so that the airflow varied with the sound level.
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