Amorphous core power trannies for SS amps - diyAudio
Go Back   Home > Forums > Amplifiers > Solid State

Solid State Talk all about solid state amplification.

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 15th April 2006, 11:02 AM   #1
diyAudio Member
 
Join Date: Dec 2002
Location: dry ol Melbourne Australia
Default Amorphous core power trannies for SS amps

Lundahl are bringing out some more amorphous core output trannies for *tube amps.

The Aksa website FAQ says:
“We are using 160 VA transformers with amorphous cores, and they perform outrageously well. The bass and image depth is really so much more remarkable than one quality 300 VA toroid.”

For SS amps, who makes amorphous core power trannies, eg 160/ 225/ 300 VA?

Anyone used any?

Thanks

Richard
  Reply With Quote
Old 15th April 2006, 11:32 AM   #2
Eva is offline Eva  Spain
diyAudio Member
 
Eva's Avatar
 
Join Date: Oct 2003
Location: Near the sea
Send a message via MSN to Eva
  Reply With Quote
Old 15th April 2006, 01:53 PM   #3
diyAudio Member
 
Join Date: Dec 2002
Location: dry ol Melbourne Australia
Where do we get 'em?

  Reply With Quote
Old 15th April 2006, 05:07 PM   #4
diyAudio Member
 
Peter Daniel's Avatar
 
Join Date: Jul 2002
Location: Toronto, Canada
Send a message via AIM to Peter Daniel
I'm also using amorphous core transformers in my amps, but comparing to quality toroids the difference definitely isn't outrageously remarkable.

While one gets the impression of increased resolution and better soundstage with amourphous core, the bass is about the same. Now, comparing cheap toroids from China with Plitron toroids the difference in bass was indeed remarkable (the Chinese TX was much worse in bass definition and PRAT).

As Jonathan Carr says here: http://www.diyaudio.com/forums/showt...0531#post80531 the actual choices in main filter caps make probably bigger difference than amorphous core transformer.

I'm sourcing mine from small factory in Europe.
__________________
www.audiosector.com
“Do something really well. See how much time it takes. It might be a product, a work of art, who knows? Then give it away cheaply, just because you feel that it should not cost so much, even if it took a lot of time and expensive materials to make it.” - JC
  Reply With Quote
Old 15th April 2006, 11:44 PM   #5
diyAudio Member
 
Join Date: Dec 2002
Location: dry ol Melbourne Australia
Hi Peter
(I was thinking of using them in an active three way, for the mids & tweets, so the bass is not an issue).
How do the prices from Europe compare with eg good torioids; can you say who?
  Reply With Quote
Old 16th April 2006, 12:27 AM   #6
diyAudio Member
 
Peter Daniel's Avatar
 
Join Date: Jul 2002
Location: Toronto, Canada
Send a message via AIM to Peter Daniel
I'm paying about the same for amorphous core 300VA toroid as for 300VA Plitron. I'm getting them from here: http://toroidy.pl/

Also, my version has thicker secondary wire, and primary over secondary. Here, how both compare sizewise:

Click the image to open in full size.

The only problem is the high cost of shipping.
__________________
www.audiosector.com
“Do something really well. See how much time it takes. It might be a product, a work of art, who knows? Then give it away cheaply, just because you feel that it should not cost so much, even if it took a lot of time and expensive materials to make it.” - JC
  Reply With Quote
Old 16th April 2006, 12:36 AM   #7
jleaman is offline jleaman  Belgium
Banned
 
Join Date: Apr 2002
Send a message via AIM to jleaman
Quote:
Originally posted by Peter Daniel
I'm paying about the same for amorphous core 300VA toroid as for 300VA Plitron. I'm getting them from here: http://toroidy.pl/

Also, my version has thicker secondary wire, and primary over secondary. Here, how both compare sizewise:

Click the image to open in full size.

The only problem is the high cost of shipping.

Witch one is better tho
  Reply With Quote
Old 16th April 2006, 12:38 AM   #8
diyAudio Member
 
Peter Daniel's Avatar
 
Join Date: Jul 2002
Location: Toronto, Canada
Send a message via AIM to Peter Daniel
In the amps I'm building for myself, I'm using amorphous core toroids (on the left). As I said, the difference is not outrageously remarkable, but those transformers have certain performance edge over the stock Plitrons.
__________________
www.audiosector.com
“Do something really well. See how much time it takes. It might be a product, a work of art, who knows? Then give it away cheaply, just because you feel that it should not cost so much, even if it took a lot of time and expensive materials to make it.” - JC
  Reply With Quote
Old 16th April 2006, 12:40 AM   #9
jleaman is offline jleaman  Belgium
Banned
 
Join Date: Apr 2002
Send a message via AIM to jleaman
Quote:
Originally posted by Peter Daniel
Didn't you know that bigger is always better

Not a topic i want to get into & some times smaller is just as good
  Reply With Quote
Old 16th April 2006, 12:41 AM   #10
diyAudio Member
 
Peter Daniel's Avatar
 
Join Date: Jul 2002
Location: Toronto, Canada
Send a message via AIM to Peter Daniel
Quote:
Originally posted by jleaman



Not a topic i want to get into & some times smaller is just as good
Like Aleph Mini board, right?
__________________
www.audiosector.com
“Do something really well. See how much time it takes. It might be a product, a work of art, who knows? Then give it away cheaply, just because you feel that it should not cost so much, even if it took a lot of time and expensive materials to make it.” - JC
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Need Amorphous Core Matching Transformers for Ribbon Drivers NV&H Planars & Exotics 19 16th July 2008 07:53 PM
Plate choke material, why to use amorphous core? noyan Tubes / Valves 5 7th July 2008 12:25 PM
amorphous iron core good or not nhuwar Tubes / Valves 12 28th April 2007 04:00 AM
Amorphous core transformers only work above 20KHz? edonion Tubes / Valves 12 23rd November 2004 11:30 PM


New To Site? Need Help?

All times are GMT. The time now is 11:12 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright ©1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2