Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Tubes / Valves All about our sweet vacuum tubes :) Threads about Musical Instrument Amps of all kinds should be in the Instruments & Amps forum

Edcor CXSE25-8-4K vs Hammond 1628SEA?
Edcor CXSE25-8-4K vs Hammond 1628SEA?
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 24th July 2006, 10:13 PM   #1
porkchop61 is offline porkchop61  United States
diyAudio Member
 
porkchop61's Avatar
 
Join Date: Aug 2004
Location: Mansfield, Connecticut
Question Edcor CXSE25-8-4K vs Hammond 1628SEA?

Hi all-
I'm trying to finish my stereo KT88 SET powered amp, and was wondering if anyone had any experience with this particular model transformer used like this?

I'm building Mikael Abdellah's SET design but in a stereo version.
See this thread:
http://www.diyaudio.com/forums/showt...threadid=59882

The price is attractive for this transformer, $75 vs $93 at AES, but I'm wondering if they are functionally/sound the same.

I've read Tubelabs comparison, but he mostly looked at the real cheap open-frame models.

Thanks in advance.
Glenn
  Reply With Quote
Old 24th July 2006, 10:38 PM   #2
Tubelab_com is offline Tubelab_com  United States
diyAudio Member
 
Tubelab_com's Avatar
 
Join Date: Jul 2005
Location: West Virginia panhandle
The transformer that I got from AES is the old flavor 1628SE not the 1628SEA. I also have the Edcor CSXE25-8-5K. I am in the process of testing both of them in a similar SE amp. The frequency response plots and some other info is in this thread.

http://www.diyaudio.com/forums/showt...threadid=83138

I have "special ordered" the new Hammond 1628SEA, but it won't be here for "3 to 4 weeks".

There is more to this than frequency response testing. I have done power sweeps for the hammond in UL and triode mode. I am doing the Edcor units this week, with the smaller transformers (One Electron, Transcendar) to follow.

The short story is that the Hammond has far better low bass, but the Edcor is a little cleaner, and has more high end detail. Both of these transformers are of the size where a tradeoff must be made. They both sound good. Price per pound is about the same. Do you want wall shaking bass, or sparkling highs?

If you believe Hammonds side of the story, the new 1628SEA has an improved high end. I won't know until I have them AND test them.
__________________
Tubelab, it's 5 year mission. To explore strange new tubes, to seek out new circuits and topologies, to boldly go where no tube has gone before......
  Reply With Quote
Old 25th July 2006, 03:55 AM   #3
Tubelab_com is offline Tubelab_com  United States
diyAudio Member
 
Tubelab_com's Avatar
 
Join Date: Jul 2005
Location: West Virginia panhandle
One more thing, you will get more power with the Edcor transformers.
__________________
Tubelab, it's 5 year mission. To explore strange new tubes, to seek out new circuits and topologies, to boldly go where no tube has gone before......
  Reply With Quote
Old 25th July 2006, 12:51 PM   #4
porkchop61 is offline porkchop61  United States
diyAudio Member
 
porkchop61's Avatar
 
Join Date: Aug 2004
Location: Mansfield, Connecticut
Thanks Tubelab, I knew you did a lot of testing on these transformers, and just got through reading that other thread.

Looks like I have to decide between the Hammond and the Edcors. I'm going to be powering my Altec A-7's with this amp, so I don't think I need a lot of bass as they tend to be "boomy" already (horn loaded design).

I'll keep watching for you're report on the SEA's when you receive them.

BTW: I'm glad I read more on these transformers as I was going to buy a pair from Antique Electronics Supply for $93 with free shipping, but they are the SE models.

Thanks again.
Glenn
  Reply With Quote

Reply


Edcor CXSE25-8-4K vs Hammond 1628SEA?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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
FS: 2 Hammond 1628SEA transformers whitelabrat Swap Meet 3 25th May 2009 04:13 PM
Pair Hammond 1628SEA single ended transformers for $175 SEPlover Swap Meet 0 21st May 2009 02:32 PM
Pair Hammond 1628SEA single ended transformers for $199 SEPlover Swap Meet 0 22nd March 2009 01:06 AM
Edcor CXSE25-8-5K Dimensions rknize Tubes / Valves 11 22nd February 2009 02:03 AM


New To Site? Need Help?

All times are GMT. The time now is 08:40 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 16.67%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio
Wiki