Can a Filtered IEC Power Inlet Improve Sound Quality? - diyAudio
Go Back   Home > Forums > Amplifiers > Power Supplies

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 29th January 2011, 09:38 PM   #1
Haz is offline Haz  United Kingdom
diyAudio Member
 
Join Date: Oct 2010
Default Can a Filtered IEC Power Inlet Improve Sound Quality?

Just a quick question does a filtered IEC power inlet improve sound quality, When using a switching power supply?

Or should just use a normal IEC and not bother with one? If any people have any advice about these that would be much appreciated.

Schaffner FN388-6 IEC 6A Inlet Filter, Fused/Switched on eBay (end time 30-Jan-11 08:41:41 GMT)

Thank you
  Reply With Quote
Old 29th January 2011, 10:07 PM   #2
diyAudio Member
 
Join Date: Nov 2010
Location: N.E. PA
It can if you click your heels 3 times and say "I Believe"

paul
  Reply With Quote
Old 29th January 2011, 10:07 PM   #3
diyAudio Member
 
Join Date: Mar 2010
The filter does not affect performance. It's there for a few reasons, most of which have to do with EMI and FCC regulations. Noise generated within the unit needs to be attenuated before exiting the power cord; noise on the power line needs to be reduced (in rare cases) before entering the device.

If you are building something or using a commercial unit, don't worry about it unless you have a specific problem that can be traced to EMI.
  Reply With Quote
Old 29th January 2011, 10:13 PM   #4
Haz is offline Haz  United Kingdom
diyAudio Member
 
Join Date: Oct 2010
Thanks for the information, I was just curious about them after seeing this listing on ebay.

NEW MAINS CONDITIONER WITH FURUTECH AC-1501 IEC FILTER on eBay (end time 17-Feb-11 16:45:48 GMT)

I know you should not believe everything you read that's why I ask.
  Reply With Quote
Old 30th January 2011, 06:29 AM   #5
AEIOU is offline AEIOU  United States
Account disabled at member's request
 
AEIOU's Avatar
 
Join Date: Jun 2009
Send a message via AIM to AEIOU Send a message via MSN to AEIOU Send a message via Yahoo to AEIOU
Quote:
Originally Posted by bob91343 View Post
The filter does not affect performance. It's there for a few reasons, most of which have to do with EMI and FCC regulations. Noise generated within the unit needs to be attenuated before exiting the power cord; noise on the power line needs to be reduced (in rare cases) before entering the device.

If you are building something or using a commercial unit, don't worry about it unless you have a specific problem that can be traced to EMI.
Did you read this article posted here at DIYaudio?
Audio Component Grounding and Interconnection
Scroll down a bit and it reads "Include a line filter on equipment that you build."
  Reply With Quote
Old 30th January 2011, 10:11 AM   #6
AndrewT is offline AndrewT  Scotland
diyAudio Member
 
Join Date: Jul 2004
Location: Scottish Borders
The filter between the mains supply and the equipment works both ways.

If you have quiet equipment and want a quiet supply, the filter attenuates the incoming Garbage coming from the mains.

If you have noisy equipment and want a quiet supply for the rest of the house, then the filter attenuates the Garbage that the noisy equipment tries to send back through the mains cable.
__________________
regards Andrew T.
  Reply With Quote
Old 30th January 2011, 02:36 PM   #7
DF96 is offline DF96  England
diyAudio Member
 
Join Date: May 2007
Yes, when using an SMPS you really need a filter to stop it exporting noise around the house and to your neighbours. Part of being a good citizen!
  Reply With Quote
Old 30th January 2011, 02:44 PM   #8
SY is offline SY  United States
diyAudio Moderator
 
SY's Avatar
 
Join Date: Oct 2002
Location: Chicagoland
Blog Entries: 1
Quote:
Originally Posted by Haz View Post
I know you should not believe everything you read that's why I ask.
Especially when it's written that ungrammatically and contains idiocies like this:

Quote:
The effect of a cleaner mains supply is better sound and picture quality if used with TV's, quieter backgrounds in music and movies and an overall improvement in bass, mid-range and treble, proven by customer feedback and repeat purchases. The conditioner is terminated with a silver plated kaiser IEC connector and utilizes Black Rhodium fusion silver plated mains cable (which has won awards for it's outstanding performance).

No better specification for the money on e-bay, 2000+ positive feed backs means happy customers.

AC-1501 IEC inlet with EMI filter 24k gold plated. (Alpha) non-magnetic copper alloy conductors. Outer cover chrome plated steel plate, Inner cover Nylon glass fibre, Inner parts held by Piezo Epoxy Rating:115V/250V 15A 50/60Hz
...and is accompanied by a price that is approximately ten times what normal, identically-functioning units cost. Must be that piezo epoxy. Or the award-winning Black Rhodium fusion silver plating.
__________________
You might be screaming "No, no, no" and all they hear is "Who wants cake?" Let me tell you something: They all do. They all want cake.- Wilford Brimley
  Reply With Quote
Old 30th January 2011, 04:10 PM   #9
DF96 is offline DF96  England
diyAudio Member
 
Join Date: May 2007
Of course, normal cheap IEC filters use magnetic copper!! And you need chrome plating on something which will be hidden inside a unit - you can't see it, but knowing it is there enhances the warm glow on your face and the placebo effect in your ears.
  Reply With Quote
Old 30th January 2011, 06:24 PM   #10
aandy is offline aandy  United Kingdom
diyAudio Member
 
Join Date: Mar 2007
Location: in UK unfortunatly
if you can find them the blue IEC inlets sound better
  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
Wiring an IEC inlet mourip Parts 5 31st January 2013 06:02 PM
What do you think about filtered IEC inlet? rg12 Parts 4 15th August 2010 09:59 PM
IEC Inlet Filter confusion jkeny Power Supplies 0 31st July 2008 09:17 PM
Construction: The best way to cut a hole for an IEC power inlet into sheet metal PaulHilgeman Parts 10 16th October 2003 08:36 PM


New To Site? Need Help?

All times are GMT. The time now is 03:48 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