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

Line conditioner measurements
Line conditioner measurements
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 23rd December 2018, 01:35 PM   #21
Max Headroom is offline Max Headroom  Australia
diyAudio Member
 
Max Headroom's Avatar
 
Join Date: Jan 2013
Location: West Australia, near to the beach, natural ambient sounds mostly.
Quote:
Originally Posted by Arno Pf View Post
Indeed, transformer-trick already shows a lot in combination with the alpha lab there even seems to be some correlation ....but the 20kHz can only highlight a possible trend that might proceed in the MHZ range (that is out of range)..
Sniffers and stuff, I am familiar in the world of EMC design and measurement...and yes it can be rather revealing..
Variable HPF (20kHz and up) and active rectifier would tell you what's happening out of audio band but present as a single number.....no spectral info but would give you something to go on.
Quote:
So, still curious about more commercial unit data (which seems not to be logical to include in every review)
Member, RNMarsh had involvement with design of Monster AC power conditioners, he might have some numbers.
Dan.
  Reply With Quote
Old 23rd December 2018, 09:18 PM   #22
DF96 is offline DF96  England
diyAudio Member
 
Join Date: May 2007
Quote:
Originally Posted by Max Headroom
My point was to inform the OP and the rest of you that when sitting in your listening chair with both loudspeakers aimed directly at the listening 'sweetspot', the listener is placed at the intersection of two modulated magnetic 'beams'.....I believe this is not healthful, just sayin'.
You could try estimating the strength of these 'beams'. That might help determine just how dangerous they are.
  Reply With Quote
Old 24th December 2018, 04:41 AM   #23
Max Headroom is offline Max Headroom  Australia
diyAudio Member
 
Max Headroom's Avatar
 
Join Date: Jan 2013
Location: West Australia, near to the beach, natural ambient sounds mostly.
Quote:
Originally Posted by DF96 View Post
You could try estimating the strength of these 'beams'. That might help determine just how dangerous they are.
I don't have any suitable/calibrated measurement gear at this time so no can do, perhaps somebody else is able to. The permanent (DC) magnetic 'beams' are modulated by audio band and higher order modulations and this is picked up by suitable coil at quite some distance according to the sensitivity of the coil.....I found that an old school car ignition coil secondary worked very well as iron cored directional transducer, even alarmingly well !.

I built a portable battery powered amp/speaker, I forget the gains but the result was very sensitive, enough so to easily listen to loadings on the HV system of electric train movements when 60m or more from the HV lines/tracks. Around the house things buzzed and hummed magnetically, especially the crt tv of course. This was prior to SMPS days......it would be interesting to take a modern magnetic listen around the house, including phones, routers, bt devices etc. A sensing coil same diameter as VC/gap mounted in front of the dust cap might be interesting/useful to the guys presently doofing it out on the JC BT thread ?. A coil mounted to the magnet assy to detect magnet changes according to drive signal ?.

Dan.
  Reply With Quote
Old 11th February 2019, 10:57 AM   #24
Arno Pf is offline Arno Pf  Netherlands
diyAudio Member
 
Join Date: Jan 2008
So...bought a EVO3 isotek SIGMAS. Obvious change in sound of my system...but the main question was....is it better? Did measurements, spectrum (they did a good job but I am not blown aways by the attenuation curve). Did some minor mods and plugged in again, similar sound...significant difference. Checked the impedance, hardly any added by the filter. Checked the amp pulse response w/wo, no difference.

So, not everything can be easily measured (nothing new here since our hearing can be more sophisticated )

Now, with the "new" sound, mellower had some minor tweaks on the mid-level of my horn setup but never got where I wanted it. Focus in center seemed to be spread and even though bass seemed to be more controlled I missed the attack in one way of the other. Today, stacked up several of my reference recordings and in the end I can conclude that the EVO3 should not be used for the two SET amps.

The source components are still attached to the EVO3 SIGMAS.

Expensive experiment, but worth doing and learned an awful lot again ;-)

Cheers,
Arno
  Reply With Quote
Old 11th February 2019, 11:37 AM   #25
maty tinman is offline maty tinman  Spain
diyAudio Member
 
maty tinman's Avatar
 
Join Date: Apr 2012
Location: Tarragona (Spain)
Quote:
Originally Posted by Arno Pf View Post
So...bought a EVO3 isotek SIGMAS...
A lot of pictures from inside:

Inside Isotek EVO3 Sigmas

Click the image to open in full size.

Only $ 3000 or more
__________________
"Comment is free, but facts are sacred" - C. P. Scott *** 40 years of the Spanish Constitution, My musical celebration

Last edited by maty tinman; 11th February 2019 at 11:41 AM.
  Reply With Quote
Old 11th February 2019, 11:58 AM   #26
Arno Pf is offline Arno Pf  Netherlands
diyAudio Member
 
Join Date: Jan 2008
had these..but was difficult to measure
  Reply With Quote
Old Yesterday, 10:00 AM   #27
dhaen is offline dhaen  Europe
diyAudio Moderator Emeritus
 
dhaen's Avatar
 
Join Date: Jun 2002
Location: U.K.
Default Ha ha

Smelling a faint whiff of snake oil I decided to put the link into Google translate guessing Danish is the source language. The translation talks about it having "six wives".. I'm presuming it means sockets?
  Reply With Quote
Old Yesterday, 10:02 AM   #28
dhaen is offline dhaen  Europe
diyAudio Moderator Emeritus
 
dhaen's Avatar
 
Join Date: Jun 2002
Location: U.K.
Had a lovely Valentines meal with my "Socket" last night
  Reply With Quote
Old Today, 11:18 AM   #29
trobbins is offline trobbins  Australia
diyAudio Member
 
trobbins's Avatar
 
Join Date: Feb 2009
Location: Melbourne, Oz
Quote:
Originally Posted by Arno Pf View Post
.. but worth doing and learned an awful lot again
I'm pleased someone got something out of this thread - or have I missed the details in some hidden link?
  Reply With Quote

Reply


Line conditioner measurementsHide 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
Topaz Line 2 Power Conditioner SyncTronX Solid State 22 25th June 2015 06:24 AM
Topaz line 1 power conditioner Variac Solid State 4 22nd June 2015 07:30 PM
Power Line Conditioner jacquesl Power Supplies 69 22nd November 2010 09:53 AM
Line Conditioner sdman Everything Else 6 24th September 2005 06:51 PM
Schematics for quality Line Conditioner? Biomed Everything Else 2 20th November 2003 02:53 PM


New To Site? Need Help?

All times are GMT. The time now is 09:41 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Copyright ©1999-2019 diyAudio
Wiki