OK, So Why Not Attach the Magnet to the Cone?

[toddalin]

When watching Jaime build the superwoofer on Myth Busters, it occured to me, with the possible exception of polyplaners, why does no one attach the magnet to the cone and hold the voice coil rigid?

In the past, I could see that this would add too much mass to the cone, but with the advent of neodymium super magnets, a little now goes a long way. This could be especially benefical to subs that use additional cone mass.

If the coil were held rigid the whole kit and kaboodle could be made easier and there would be no flexing of the leads where they attach to the cone ('cause they wouldn't).

Just a thought.

[Robh3606]

Because of the mass. Could you imagine trying to drive a cone with 10lbs of ferrite attached to it??? You would also have to attach the entire magnetic circuit to it as well. Look how heavy a 2435 is, still in lbs.

Rob

[Mr. Widget]

In the past, I could see that this would add too much mass to the cone, but with the advent of neodymium super magnets...

Cones are measured in grams and even neodymium magnets, as strong as they are, are still measured in kg... just fewer kgs than with the alnicos and ferrites.


Widget

[scott fitlin]

Too much mass? No problem! One of these should be the answer.

http://www.labgruppen.com/media/FPpl...FP13000_V4.pdf

[Hoerninger]

Too much mass? No problem! One of these should be the answer.

LAB.GRUPPEN - SWEDEN

___________
Peter

[scott fitlin]

LAB.GRUPPEN - SWEDEN

___________
Peter

Lab Gruppen, currently the favorite in the pro and touring world of high power sound.

They say that these amps are the best sounding of all the new lightweight technology amps available.

I just havent figured out what I could do with an amp that puts out 13,000 watts, yet! Probably help a reconer pay for a new Mercedes CLS-500.

[Tom Brennan]

Scott---Maybe with a stationary coil you could use tubing for the coil and run a coolant through it.

Then the Pipefitters and Boilermakers could fight over the jurisdiction. ;-)

[scott fitlin]

I dunno, Tom, I think I like the idea of keeping smiles on the reconers faces.

There was a subwoofer shootout here in NYC a few weeks ago, they used this amp, and the very high powered, but even smaller and lighter Powersoft amps.

Im curious to hear what subs designed to handle this kind of power sound like.

[Nightbrace]

Too much mass? No problem! One of these should be the answer.

http://www.labgruppen.com/media/FPpl...FP13000_V4.pdf

Nice! my tubes won't like that amp /

[scott fitlin]

No, your tubes wont like that amp, I dont think your speakers would either, but, your utility company will like you.

You will need a 30 amp dedicated circuit for this thing, it will draw 58 amps on peaks when driven to full power at 2 ohms.

Your neighbors might even dislike you from as far away as 8 or 9 blocks.

And, if you run 4 BassMaxx Tripps in your house off that amp, I can almost guarantee your local Town Hall passing an ordinance because of you!