Someone needs to do this to a voicecoil

[zerosktr111 1]

someone should do this with a voice coil and make the sub-woofer super efficient!!!

[thebiggmann12 14]

thats pretty kool

[Tirefryr 1,742]

Cool experiment, but wouldn't work on a driver.

[Aaron Clinton 2,372]

Cryo-coils!!

[zerosktr111 1]

Cool experiment, but wouldn't work on a driver.

I don't see why not as long as you can put the coil and the cone on the sub before it goes back to normal temp.

[Tirefryr 1,742]

You'd be able to freeze it once. What would that accomplish? Once the coil heats up to operating temp, freezing it again would break it from thermal shock. You have to remember, the coil is a strand of wire wound around the former, not a single mass of aluminum or copper as the ring used in the demonstration.

[Impious 1,476]

Not to mention needing an amplifier that wouldn't burst into flames into an extremely low impedance.

[SpeakerBoy 64]

You'd be able to freeze it once. What would that accomplish? Once the coil heats up to operating temp, freezing it again would break it from thermal shock. You have to remember, the coil is a strand of wire wound around the former, not a single mass of aluminum or copper as the ring used in the demonstration.

Don't kill his dreams

[Huricaine 0]

What would be awesome is to create a sub that had a nitrogen chamber to recycle nitrogen to liquid over and over, or get some system tthat atleast makes a gas cold like a good fride style. Would make subs alot more efficient! Could maybe spend less on amps..

[sefugi 166]

Thats pretty cool! If that worked you could have a wall of 24 subs powered by 50 watts of power and 4' of excursion! LOL

[Tirefryr 1,742]

What would be awesome is to create a sub that had a nitrogen chamber to recycle nitrogen to liquid over and over, or get some system tthat atleast makes a gas cold like a good fride style. Would make subs alot more efficient! Could maybe spend less on amps..

It wouldn't increase the efficiency of the driver, just it's cooling capacity. It would still be generating just as much heat and wasting just as much power, but with increased cooling.

[Huricaine 0]

Wouldn't reduce thermal compression some atleast?

[bassnatzii 9]

one of the early versions of orion xtr was cooled a certain way, to early in morning to think, this is when orion was orion also back in the day

[dorian01 0]

would it be possible to make a sub with the magnet in the middle and have the copper coils where the magnet usually is. then that way u can have hallow copper tubes with copper wired arround the tubes and have liquid nitrogen or w/e flow through the tubes cooling the copper wires. the coils will stay in the same spot and they will move the magnet when electricity flows through.

[Bob345 39]

would it be possible to make a sub with the magnet in the middle and have the copper coils where the magnet usually is. then that way u can have hallow copper tubes with copper wired arround the tubes and have liquid nitrogen or w/e flow through the tubes cooling the copper wires. the coils will stay in the same spot and they will move the magnet when electricity flows through.

a problem i could see happening is to large of a cone mass. but a good idea!

[dorian01 0]

would it be possible to make a sub with the magnet in the middle and have the copper coils where the magnet usually is. then that way u can have hallow copper tubes with copper wired arround the tubes and have liquid nitrogen or w/e flow through the tubes cooling the copper wires. the coils will stay in the same spot and they will move the magnet when electricity flows through.

a problem i could see happening is to large of a cone mass. but a good idea!

just use a radial magnet (circle magnet with a hole in the center). u can then put a stationary cylindar magnet with the same or opposite polarity in the middle of the radial magnet to keep it linear

[Mark LaFountain 1,054]

we had a teammate a while back try this. He even cryo-froze 1/0 awg wire and all. Not sure as to the outcome of it though, he threw a big stink when we wouldn't warranty his XCONs after he was burping them @ 10k/ea and couldn't figure out why they blew lol.

[Bob345 39]

we had a teammate a while back try this. He even cryo-froze 1/0 awg wire and all. Not sure as to the outcome of it though, he threw a big stink when we wouldn't warranty his XCONs after he was burping them @ 10k/ea and couldn't figure out why they blew lol.

[Dammed 12]

Hmm, I would rather make a metal box on top of the heatsink on a amplifier, fill it up with nitrogen and then make it drive subwoofers at 0,1ohm or lower. It would be like clocking a computer that's nitrogen cooled. Since the amplifier get's cooled it should withstand really low loads. Kinda surprises me that no one has tried it in DB contests.

[Tirefryr 1,742]

Power is cheap and easy. getting the woofers to handle it is the hard part.

[Dammed 12]

whats the main problem, thermal or mechanical?

[Duran 387]

whats the main problem, thermal or mechanical?

Thermal, because 99% of the power put through the voice coil is wasted as heat.

It's very easy to mechanically control a speaker.

[Dammed 12]

What about something like this:

The green is the the tubing, liquid nitrogen would flow through.

Or a more complex cooling with cooling of the magnet:

[Tirefryr 1,742]

YOu can't use liquid nitrogen as it will freeze the part and render it brittle. There have been designs using liquids to cool the motor and surrounding parts, but the best solution to date has been air movement.

[Julian 641]

That wouldn't work outside of extreme stuff.. but you'd be removing a lot of metal in the motor reducing the motor strength.. which you want with high spl

But most extreme stuff is 3 second burps at high voltages.