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

Digital Source Digital Players and Recorders: CD , SACD , Tape, Memory Card, etc.

Clamp on Inductors -  Change Impeadance?
Clamp on Inductors -  Change Impeadance?
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 17th July 2003, 04:29 PM   #1
fmak is offline fmak
diyAudio Member
 
Join Date: May 2001
Location: London UK
Default Clamp on Inductors - Change Impeadance?

Do clamp on inductors change substantially the impedance of 75R and 110R digital cables. They do change the sound somewhat.
  Reply With Quote
Old 17th July 2003, 07:17 PM   #2
randytsuch is offline randytsuch
diyAudio Member
 
Join Date: Jan 2003
Location: LA
I think the clamp on inductors would affect the impedence, but their effect is dependent on the frequency of the signal. I would think they have more impedence as frequency rises, since they attenuate the signal more at higher frequencies.

The amount of impedence, and especially at what frequency they start attenuating at, depends on the material of the inductor.

These guys, http://www.fair-rite.com
make ferrite beads and clamp ons. I think they would have some usefull information on the characteristics of ferrite beads.

Randy
  Reply With Quote
Old 18th July 2003, 08:47 PM   #3
Guido Tent is offline Guido Tent  Netherlands
diyAudio Member
 
Join Date: Dec 2001
Location: Eindhoven
Default Re: Clamp on Inductors - Change Impeadance?

Quote:
Originally posted by fmak
Do clamp on inductors change substantially the impedance of 75R and 110R digital cables. They do change the sound somewhat.

Hi

They increase the CM impedance, which ofcoure can be heard.

I doubt if they also change the DM impedance, if they do, your digital interconnect is badly screened.

Measurements ?

regards
__________________
Guido Tent
www.Tentlabs.com
  Reply With Quote
Old 18th July 2003, 10:45 PM   #4
fmak is offline fmak
diyAudio Member
 
Join Date: May 2001
Location: London UK
Default Re: Re: Clamp on Inductors - Change Impeadance?

[QUOTE]Originally posted by Guido Tent
[B]


Hi

They increase the CM impedance, which ofcoure can be heard.

I doubt if they also change the DM impedance, if they do, your digital interconnect is badly screened.

Measurements ?

------------------------------------------------------
I don't have the equipment; perhaps you have.
  Reply With Quote
Old 18th July 2003, 10:50 PM   #5
SisterOfMercy is offline SisterOfMercy  Europe
diyAudio Member
 
SisterOfMercy's Avatar
 
Join Date: Mar 2003
Default Re: Re: Clamp on Inductors - Change Impeadance?

Quote:
Originally posted by Guido Tent
They increase the CM impedance, which ofcoure can be heard.
I doubt if they also change the DM impedance,
Uh, I'm sorry I have to ask, but could you explain what CM and DM is?
I did two years electrical engineering, but I haven't got the slightest idea what these mean
  Reply With Quote
Old 20th July 2003, 09:42 AM   #6
Guido Tent is offline Guido Tent  Netherlands
diyAudio Member
 
Join Date: Dec 2001
Location: Eindhoven
Default Re: Re: Re: Clamp on Inductors - Change Impeadance?

Quote:
Originally posted by SisterOfMercy


Uh, I'm sorry I have to ask, but could you explain what CM and DM is?
I did two years electrical engineering, but I haven't got the slightest idea what these mean
Hi

CM = Common Mode
DM = Differential mode

regards
__________________
Guido Tent
www.Tentlabs.com
  Reply With Quote
Old 20th July 2003, 09:44 AM   #7
Guido Tent is offline Guido Tent  Netherlands
diyAudio Member
 
Join Date: Dec 2001
Location: Eindhoven
Default Re: Re: Re: Clamp on Inductors - Change Impeadance?

[QUOTE]Originally posted by fmak
Quote:
[i]
------------------------------------------------------
I don't have the equipment; perhaps you have.
Fred

I never measured THAT effecet on cabling when adding clamps

regards
__________________
Guido Tent
www.Tentlabs.com
  Reply With Quote

Reply


Clamp on Inductors -  Change Impeadance?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
VAS clamp diodes GK Solid State 20 26th August 2008 03:04 PM
Wanted: Big carton of small, high-impeadance drivers Spasticteapot Swap Meet 7 17th July 2007 02:06 AM
can i increase the impeadance of a driver? larrellio Parts 3 21st July 2006 08:18 AM
TangBand 871S Impeadance Compensation Tenson Multi-Way 3 1st May 2006 01:25 PM
Mapping Impeadance w/ Non-Inductive Resistor CBFryman Subwoofers 2 16th July 2005 05:30 PM


New To Site? Need Help?

All times are GMT. The time now is 04:22 AM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.79%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio
Wiki