Go Back   Home > Forums > Design & Build > Parts

Parts Where to get, and how to make the best bits. PCB's, caps, transformers, etc.

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 1st April 2005, 07:53 AM   #1
diyAudio Member
 
Join Date: Jun 2004
Location: Barcelona
Default EPOS Sikorel - Any good?

Hello

I'm constructing a dual mono power supply 2x10,000uF per rail (8 in total) and have heard that Siemens Sikorel Caps would be the best to use i.e. sound the best. However these have been discontinued and replaced by EPOS Sikorel - has anybody used these are they the same? do they sound the same?

Please can somebody also recommend capacitors they have used or rate them in order?

Any brand recommendations for the transformer - Nuvotem from R&S are the easist to get here in Barcelona

Thanks

Stephen
  Reply With Quote
Old 1st April 2005, 08:26 AM   #2
diyAudio Member
 
Join Date: May 2004
Location: Zagreb
Hi,

Yes they are the same.
EPCOS is new groupation (former Siemens) and the technology is same.
But, if you care about stamped name on the caps, try RS-components, they still lists some of the Siemens Sikorel 10k uF 63V.
Otherwise they are the fastest and most durable caps to my knowledge (they can put over 30A under extreme conditions, where the 90% others cooks)

Hope this help
  Reply With Quote
Old 1st April 2005, 08:39 AM   #3
diyAudio Member
 
Join Date: May 2004
Location: Zagreb
Default Re: EPOS Sikorel - Any good?

.Please can somebody also recommend capacitors they have used or rate them in order?




Hm, today you have really good choice.
I used Evox-Rifa PEH200, BHC ALS 40, Nichicon Gold tune, Nichicon LQ(M).

All they sounds good, however I was mostly satisfied with Nichicons Gold tune, and recently LQ (those are cheap but excellent, although sometimes hard to find). I saw them implemented in Gryphons, Aurdio Research etc.

Now, that's depends on what is the pourpose of your power supply- if it for power amp, then I would use multiple smaller LQ's (10k uF/80V), e.g 4-6 per line.
The others cited cans were just as replacement and I did not noticed big differencies, although the Evox/BHC are pretty similar, very low ESR (14-16mOhms, if I remeber correct), so both are good if you have space for just one or two.

Otherwise, go for multiple smaller (even 6800uF). This will decrease drastically ESR, and speed rise tima and current capability.
And, don't forget modern rectifier diodes. If it is possible, go for powerfull Schottky, without bypass ceramics
  Reply With Quote
Old 1st April 2005, 12:33 PM   #4
protos is offline protos  Greece
diyAudio Member
 
protos's Avatar
 
Join Date: Mar 2002
Location: Athens+Addis Ababa
I used some in a bosoz.However without doing too many ABs I thought they didnīt sound that great.Particularly considering the huge price.
  Reply With Quote
Old 1st April 2005, 01:42 PM   #5
diyAudio Member
 
Join Date: May 2004
Location: Zagreb
Quote:
Originally posted by protos
I used some in a bosoz.However without doing too many ABs I thought they didnīt sound that great.Particularly considering the huge price.


You mean Schottkies, Sikorel's, or what...?
  Reply With Quote
Old 1st April 2005, 05:02 PM   #6
diyAudio Member
 
Join Date: Jun 2004
Location: Barcelona
Thanks all so far for your responses, Yes I am building a power amp supply
I was thinking of using 4x4700uf per rail as an alternative or even 1x10000uf and 1x 4700uf per rail - don't quite know how i'm gonna fit all these in the case though
  Reply With Quote
Old 2nd April 2005, 11:20 AM   #7
diyAudio Member
 
Join Date: Oct 2004
you might also want to consider RIFA's other series called PEH169.
That is RIFAs flagship.

A RIFA PEH169 10 000u/63V has an ESR at 100 Hz of 14 mOhm, and at 100 kHz only 9 mOhm.
Inductance is 16 nH.

I use 6 of 33 000 u/63V for each channel, and also have a large polyprop and a 100n polystyrene in paralell with the big caps.
All RIFAs.

Click the image to open in full size.

Click the image to open in full size.


Sigurd
  Reply With Quote
Old 5th April 2005, 09:17 PM   #8
diyAudio Member
 
Join Date: Jun 2004
Location: Barcelona
Just calcalated my case size, can just fit 4X4700uf per rail for each monoblock.
So I think I'll do that, thanks
  Reply With Quote
Old 6th April 2005, 04:05 PM   #9
Gasho is offline Gasho  Croatia
diyAudio Member
 
Gasho's Avatar
 
Join Date: Nov 2004
Location: Zagreb
I can buy Rifa PEH200 series electrolytic caps , ar they good as 169 series?

I used some "BC components" 2222 154 series (computer grade with screw terminals) electrolytic caps , and they sounds wonderfull to me , extremly precise and deep bass with fast and smooth mids and treble. Very nice.
Attached Images
File Type: jpg 11210001.jpg (5.9 KB, 764 views)
  Reply With Quote
Old 6th April 2005, 04:33 PM   #10
diyAudio Member
 
Join Date: May 2004
Location: Zagreb
I can buy Rifa PEH200 series electrolytic caps , ar they good as 169 series?


To me, there's not too much difference between PEH200 and say BHC ALS 30. I tried both of them in some older (but respectable)Sansui amps, and nothing changed in sonic term (the other components in the PS are Sanken FMG22S and -S 100ns diodes, Elna film bypass and small elco's, original Sansui 460VA EI transformer, and some discrete regulation).

I don't have a direct experience with 169, but I'm not impressed with 200's. I use Nichicons LQ where needed since I have good source here in Croatia, and they are very affordable (read: cheap, 6,5Ä for 10000 uF/80V). If these are implemented in Krell FPB series, why not to use them?

Gasho, e-mail me if you're interested
  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
Improvement on Epos's Holty Full Range 3 11th January 2007 06:35 PM
T-Amp good for Epos ELS-3 dudesinmexico Class D 3 5th September 2006 12:31 PM
Help designing EPOS clone chuck55 Multi-Way 19 1st September 2006 04:33 PM
EPOS ES22 construction Pete Fleming Multi-Way 11 23rd February 2006 10:41 PM
Epos ES11 tweeter noise carlosfm Multi-Way 18 26th October 2004 09:17 PM


New To Site? Need Help?

All times are GMT. The time now is 10:57 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