High Efficiency Speaker Asylum

Need speakers that can rock with just one watt? You found da place.

Return to High Efficiency Speaker Asylum

Message Sort: Post Order or Asylum Reverse Threaded

ale driver cut off drawing

200.223.61.74
Posted on June 14, 2007 at 12:33:12
angeloitacare
Dealer

Posts: 539
Location: aracaju, brazil
Joined: September 19, 2006



if you have knowledge and experience of compression driver design, could you comment the Ale driver ? does it not loose a lot of its alnico magnet force with heat ? do u know a more modern driver,a better design ? i would like to learn more abought this.

Angelo

 

Hide full thread outline!
    ...
RE: ale driver cut off drawing, posted on June 14, 2007 at 15:07:02
John Sheerin
Audiophile

Posts: 524
Location: PA
Joined: July 28, 2003
 What heat? It's a compression driver for home use. If you're heating it up, you're nuts.

 

"If you're heating it up, you're nuts.", posted on June 14, 2007 at 17:09:53
eso
Manufacturer

Posts: 7843
Location: Long Beach, CA, USA
Joined: March 15, 2001
 ... Or Deaf... or both.

eso

 

RE: "If you're heating it up, you're nuts.", posted on June 15, 2007 at 09:52:25
angeloitacare
Dealer

Posts: 539
Location: aracaju, brazil
Joined: September 19, 2006
 hi eso

i didn't express well myself. a certain percentage of the magnet force focussed on the voice coil gap is always lost, dependig of the driver design. for example, the Neo radial magnet of the aura 1808 motor does transmit it's force almost 100% to the voice coil gap. I don't know the lost, if it's transformed in heath, ore wathever. However, just looking at the design of the ale, it does not look evolved. that's the reason of my quest.At the meen time, the ale has 24000 gauss on the gap, witch is the highest of the all drivers i know.

 

RE: "If you're heating it up, you're nuts.", posted on June 16, 2007 at 10:53:46
John Sheerin
Audiophile

Posts: 524
Location: PA
Joined: July 28, 2003
 >1808 motor does transmit it's force almost 100% to the voice coil gap. I don't know the lost, if it's transformed in heath, ore wathever.

I think you're talking about the fringe field. Yes, looking at the design, it looks like it would have some fringing around the gap. That's the problem with a very small voice coil and large center magnet - you easily saturate the pole and have lots of stray field from the top of the magnet to the bottom of the front plate. If they have the distribution of and level of flux they need in the gap, then they've achieved the result they want. It's just not done in an efficient manner.

 

RE: "If you're heating it up, you're nuts.", posted on June 17, 2007 at 03:10:08
angeloitacare
Dealer

Posts: 539
Location: aracaju, brazil
Joined: September 19, 2006
 hi John

u've answered my question. Someone i know in italy is quit advanced to built drivers similar to goto and ale. He has almost all elements together. The only thing he does not know still, is how to make the frp edge of the diaphram, goto and ale uses.But i think much more advanced and evolved designs are around, so he should find a way to get better results than the japanese, just using may some elements of their design, and try to do something better.

Angelo

 

RE: "If you're heating it up, you're nuts.", posted on June 17, 2007 at 11:15:48
John Sheerin
Audiophile

Posts: 524
Location: PA
Joined: July 28, 2003
 Building an FRP surround should be fairly easy. Forming the dome is the hardest part in my opinion. If you can form a dome, you should be able to make the mold necessary to either injection mold the surround or form it in some other way depending on the material you're using (thermoform, vacuum form, etc.).

 

difficulties...., posted on June 17, 2007 at 13:17:01
angeloitacare
Dealer

Posts: 539
Location: aracaju, brazil
Joined: September 19, 2006
 John

the fellow wants to use a diamond dome.

http://www.kinik.com/KINIK/products/newproducts_dd_en.asp

The most difficult part is :
- to make a voice coil edge wound with 16 ore 32 ohm.
- also what glue to use to glue the frp edge to the diaphragm ?

if you know a company with experience with that, let me know.

Angelo

 

Page processed in 0.020 seconds.

[ Top Top of Page ] [ Contact Us ] [ Support/Wish List ] [ Copyright © 2025, Audio Asylum, all rights reserved ]
[ General ] [ Speakers ] [ Tubes ] [ Vinyl ] [ Digital ] [ Hi-Rez ] [ Video Asylum ] [ Cables ] [ Tweaks/DIY ] [ Music ] [ Films ]