GOT 21's :D

[The A Team]

To bad these motors are not very loud, but they will sound great. Thats a nice collection for sure.

[kirill007]

Damn, i would like to have them in my house...(and use my room as the sealed chamber of a 4 order bandpass... )

[Forevrbumpn]

yea i herd there like 50 or 500 times stronger than a regular magnate but not positive

Neo isn't 500 times stronger than ferrite, about 20 - 30times stronger

But in HIGH power SPL Neo still doesn't have a long term use yet, since when the stronger the neo, the faster it loses power with heat, so even with the lower grade neo like n42, the magnetism still starts to dissipate with about 150 - 160degs, while ferrite can hold its magnetism up to 200 - 240deg

Why is that important?

Well, voice coils generate a lot of heat, a coil can get 300+ deg, and it radiates on to the magnet, and top plate, and pole piece

So yeah Neo is good for pro audio, and light subwoofer applications, but when they get hot, they lose power and need to be re-charged

Should we get in to the charging of Neo? Its not easy

A standard ferrite magnet, say 8" OD 1" thick- 2 slugs attached to a built up motor, will need about 1000 volts to charge with about 600 - 800 amps of current behind that 1000v

Thats about 800,000watts per magnet charge

Neo, you need about 3 - 4 - 5 times the charging force than ferrite

meaning to charge 1 neo magnet about 3" OD 1" thick, you need about 3,200,000watts for every charge, and thats assuming the motor structure is small enough to be charged inside the magnet charger

Anyone owning a Shocker Sig motor, dont come to me saying, "But my neo motor still works fine" Sure it works fine, but sure half the magnetism, if not more has been dissipated from that motor

So, that is my thought on neo... bottom line needs to be taken care of, and watched closely

These Aura motors though, are about the best design neo motors on the market, the neo stays pretty cool this way, and is small enough to be charged at a few locations

Edited May 29, 2010 by Forevrbumpn

[TLEJ]

Holy hell..

[AI James]

no they are true aura motors probably the last stock pile around for sure...

all those go into single 21 prosound cabinets...i think 17 cabinets are being build mellow18 is going to get the first pair.

Mainly for dj stuff.

I only have 2 motors so only 2 will go into the explorer when i get to working on it. Wont be insane SPL prolly give them 2kw each but they are super efficient with the right coils on them

they were made by TC sounds for Aura, and they are still available...even parts express still sells them

http://www.parts-express.com/pe/showdetl.cfm?Partnumber=293-674

[parton226]

So neo magnets are like rare earth magnets, strong as hell.

A neodymium magnet (also known as NdFeB, NIB, or Neo magnet), a type of rare-earth magnet, is a permanent magnet made from an alloy of neodymium, iron, and boron to form the Nd2Fe14B tetragonal crystalline structure. This material is currently the strongest type of permanent magnet

gotta love google lol

EDIT: i didnt see Forevrbumpn's post shoulda looked a little more lol.

your the man btw. i wish i had half the knowledge you do.

Edited May 30, 2010 by parton226

[OcBish]

they were made by TC sounds for Aura, and they are still available...even parts express still sells them

http://www.parts-express.com/pe/showdetl.cfm?Partnumber=293-674

$1200 dollars no thanks

[F1rtyfwe]

yea man id go ahead and recone all of them w/ dc soft parts looked at those surrounds for a minute and like wtf doesnt look like it could take a beating.

[mr.p]

mine are being reconed this week finally found a cone/surround suitable enough...

tc made a knock off version called the beehive and has recently starting producing...well, "replica" motors that are pretty similar but if they are anything like he tried before they will not be up to snuff

[Forevrbumpn]

if you can get just 2 extra cones, let me know P

I still have these 21" frames I want to use for something, anything