EMI shielding inside the PC
#1
I've been following an interesting thread on the Linn forum (https://www.hifiwigwam.com/forum/topic/1...hronicles/) Has anyone investigated using EMI shielding inside a streamer? I am considering testing this product inside mine:  https://www.mouser.co.uk/ProductDetail/L...EShA%3D%3D
Reply

#2
(06-Feb-2021, 06:23 PM)PeteCallaghan Wrote: I've been following an interesting thread on the Linn forum (https://www.hifiwigwam.com/forum/topic/1...hronicles/) Has anyone investigated using EMI shielding inside a streamer? I am considering testing this product inside mine:  https://www.mouser.co.uk/ProductDetail/L...EShA%3D%3D

[Image: 003547sfyvyjajesejlres.jpg]

I've been using EMI absorber inside switch, streamer, and DAC for some years.  They are interesting and the effect is very significant.
IMHO, for the digital part you can apply as many as you can.  But for the audio, only cover those digital board or the sound would be weird.
The EMI absober I'm using was from 3M but it's just discontinued.  Here is the suggested substitute. https://www.digikey.hk/product-detail/en/0/3M155948-ND

So, here are some discussions but in traditional Chinese, one gotta use the browser's translate function.  
https://www.hiendy.com/hififorum/forum.p...&tid=81032
https://post76.hk/thread-207267-1-1.html

Have fun, pal.  Shy
[-] The following 1 user Likes hkphantomgtr's post:
  • PeteCallaghan
Reply

#3
(06-Feb-2021, 11:15 PM)hkphantomgtr Wrote: I've been using EMI absorber inside switch, streamer, and DAC for some years.  They are interesting and the effect is very significant.
IMHO, for the digital part you can apply as many as you can.  But for the audio, only cover those digital board or the sound would be weird.
The EMI absober I'm using was from 3M but it's just discontinued.  Here is the suggested substitute. https://www.digikey.hk/product-detail/en/0/3M155948-ND

Ah very interesting. Thanks for the link, I'll check it out.

My thinking is to use the shielding to minimise EMI between the SSD, the motherboard/CPU, the ATX power supply, and the power cables.

I think I can do this with minimal interference with air flow, so should not cause over heating. The case stays pretty cool.

This pic shows the interior.


[Image: IMG-20210206-144846518-2.jpg]
Reply

#4
(06-Feb-2021, 11:15 PM)hkphantomgtr Wrote: https://www.hiendy.com/hififorum/forum.p...play&fid=6
Wrong URL? It brings me to the 2 channel forum, but not any specific thread.
Snakeoil Operating System - Music, your way!
Reply

#5
(07-Feb-2021, 09:52 AM)agent_kith Wrote:
(06-Feb-2021, 11:15 PM)hkphantomgtr Wrote: https://www.hiendy.com/hififorum/forum.p...play&fid=6
Wrong URL? It brings me to the 2 channel forum, but not any specific thread.

Thanks!  Should be this one. https://www.hiendy.com/hififorum/forum.p...&tid=81032  Shy
[-] The following 1 user Likes hkphantomgtr's post:
  • agent_kith
Reply

#6
(07-Feb-2021, 12:29 PM)hkphantomgtr Wrote: Thanks!  Should be this one. https://www.hiendy.com/hififorum/forum.p...&tid=81032  Shy
Interesting... As some of the commenters said, use sparingly, too much damping can kill the sound.

This reminds me of the best setup I have heard so far (the guy who inspired me to tune Hifi systems - Kajak12). He doesn't use a case for his TDA-1541 DAC. Effectively his DAC is unshielded, but putting the case back actually makes the sound worse. So absorbing these interferences internally sounds like a good tweak.
Snakeoil Operating System - Music, your way!
Reply

#7
(08-Feb-2021, 07:34 AM)agent_kith Wrote:
(07-Feb-2021, 12:29 PM)hkphantomgtr Wrote: Thanks!  Should be this one. https://www.hiendy.com/hififorum/forum.p...&tid=81032  Shy
Interesting... As some of the commenters said, use sparingly, too much damping can kill the sound.

This reminds me of the best setup I have heard so far (the guy who inspired me to tune Hifi systems - Kajak12). He doesn't use a case for his TDA-1541 DAC. Effectively his DAC is unshielded, but putting the case back actually makes the sound worse. So absorbing these interferences internally sounds like a good tweak.

Yup, so I think, and in my experience, using EMI absorber for digital part is with much less concern.  

Even in almost a year ago I've tried using EMI absorber in my Lumin U1 Mini, and found the sound changed drastically ( https://www.hiendy.com/hififorum/forum.p...pid3049796 ), I only dig deeply and understood more how to make use of the change to achieve a significant sonic improvement in recent 2 months.  Big Grin


[Image: IMG-20210115-231426528.jpg]

[Image: IMG-20210115-231436481.jpg]

[Image: IMG-20210115-231420082.jpg]

[Image: IMG-20210115-231600087-HDR.jpg]

[Image: 180209h43cmzsc5z1wc5vs.jpg]
[-] The following 2 users Like hkphantomgtr's post:
  • PeteCallaghan, agent_kith
Reply

#8
That's very helpful, thanks. I look forward to testing it on my streamer.

Have you come across benefits of encasing the AC adaptor in earthed EMI shielding copper sheet, like that used to shield electric guitars?
Reply

#9
(09-Feb-2021, 03:55 AM)PeteCallaghan Wrote: That's very helpful, thanks. I look forward to testing it on my streamer.

Have you come across benefits of encasing the AC adaptor in earthed EMI shielding copper sheet, like that used to shield electric guitars?

You're welcome.  Yet I didn't encasing with copper sheet. Big Grin

In my understanding, the copper sheet reflects and just keeps part of the charges on its surface.  Eventually it becomes a secondary sources of emi pollution.😊
Reply

#10
BTW, the exact one I'm using was just discontinued. This is the suggested substitute, https://www.digikey.hk/product-detail/en/0/3M155948-ND
Maybe you can order one and try in your streamer, too.   :)
Reply



Bookmarks



Users browsing this thread:
1 Guest(s)

[-]
Our Sponsors

[-]
Welcome
You have to register before you can post on our site.

Username/Email:


Password:





[-]
Latest Threads
ZimaBoard 2x NIC, 2x SATA, 2x USB, 1x PC...
Last Post: agent_kith
26-Mar-2024 12:04 PM
» Replies: 13
» Views: 612
LMS Upgrade ?
Last Post: uglymusic
15-Mar-2024 09:14 PM
» Replies: 7
» Views: 149
Squeezebox shutdown
Last Post: TripleX
13-Mar-2024 07:34 AM
» Replies: 4
» Views: 70
MP3 Not Playing
Last Post: Coacharnold
10-Mar-2024 10:25 AM
» Replies: 3
» Views: 52
Fail to install myMPD
Last Post: hkphantomgtr
03-Mar-2024 08:45 PM
» Replies: 9
» Views: 195
Intel HFI Driver Can "Save Tons Of CPU C...
Last Post: hkphantomgtr
28-Feb-2024 09:15 PM
» Replies: 0
» Views: 41
Announcing Snakeoil Measurements 1.3.0
Last Post: agent_kith
26-Feb-2024 10:02 PM
» Replies: 94
» Views: 4137
More Problems with Squeezelite in 1.3
Last Post: Coacharnold
17-Feb-2024 09:47 PM
» Replies: 2
» Views: 69
Snakeoil Music server & Snakeoil its own...
Last Post: Snoopy8
17-Feb-2024 11:20 AM
» Replies: 8
» Views: 365
RoonBridge (64 bit only)
Last Post: scrarfussi
15-Feb-2024 08:26 PM
» Replies: 3
» Views: 4125

[-]
SnakeoilOS Mission Statement

Our mission is to create a free to use computer OS that is easy to install, intuitive to operate and play music that will connect and engage with you emotionally.

SnakeoilOS gives you the freedom to spend more time on listening, enjoying and exploring music. Wasting time on computers is now a thing of the past! Everything is constantly evolving/improving. Please check back often for updates.

If you like this project, do show your support with a small token donation. All donations collected will be used to run this website, and for purchasing new equipment for the project.


Powered By MyBB, © 2002-2024. Theme © Melroy van den Berg.