hypex ncore - Page 558 - diyAudio
Go Back   Home > Forums > Commercial Sector > Vendor Forums > Vendor's Bazaar

Vendor's Bazaar Commercial Vendors large & small hawking their wares

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 22nd November 2012, 03:09 PM   #5571
diyAudio Member
 
Esperado's Avatar
 
Join Date: Jul 2011
Location: France
Quote:
Originally Posted by rondr View Post
Almost finished here.
I wonder why so few people take care of shielding their SMPS. They raditate EMI inside the box, and avoiding-them to reach the amp can have only positive effects.
__________________
Ultimate Protection and more.The Only Source of Knowledge is experience, everything else is just information” ©A. Einstein
  Reply With Quote
Old 22nd November 2012, 03:15 PM   #5572
Julf is offline Julf  Europe
diyAudio Member
 
Join Date: Oct 2011
Location: Amsterdam, The Netherlands
Quote:
Originally Posted by mr_push_pull View Post
now the <replace with audiophile fuse price> dollars question: is that a very expensive alloy that requires very high tech equipment in order to be fitted inside a glass/ceramic tube with metal endings?

Constantan wire in small quantities is about $10 per meter, so the raw material for a fuse should cost about $0.1. No exotic or special equipment needed compared to normal wire fuses.

Only issues with constantan is a higher resistance than copper or silver, and a strong sensitivity to strain, so very theoretically it could cause microphonic effects.
  Reply With Quote
Old 22nd November 2012, 03:21 PM   #5573
diyAudio Member
 
Join Date: Mar 2004
Location: At the output stage
Send a message via Yahoo to mr_push_pull
Quote:
Originally Posted by Esperado View Post
I wonder why so few people take care of shielding their SMPS. They raditate EMI inside the box, and avoiding-them to reach the amp can have only positive effects.
the arrangement that Bruno used for demo/evaluation purposes has the SMPS very close to the amplifier board and it's unshielded. if it were that bad I'd guess that the evil effects of the SMPS would be visible in measurements.
also, it looks like everyone forgets the fact that the amplifier itself is a switching device carrying amperes at hundreds of kHz's. the PCB traces that carry those signals are millimeters away from tens of SMD devices. at least on my UCD modules.

@Julf:
then the $70 each audiophile fuses must be justified by the measures taken to reduce microphony.
__________________
we all love a good ol' stereotype until it's against us

Last edited by mr_push_pull; 22nd November 2012 at 03:25 PM.
  Reply With Quote
Old 22nd November 2012, 03:28 PM   #5574
Julf is offline Julf  Europe
diyAudio Member
 
Join Date: Oct 2011
Location: Amsterdam, The Netherlands
Quote:
Originally Posted by mr_push_pull View Post
then the $70 each audiophile fuses must be justified by the measures taken to reduce microphony.
Aren't they intrinsically justified by the adjective "audiophile"?
  Reply With Quote
Old 22nd November 2012, 03:35 PM   #5575
diyAudio Member
 
Join Date: Mar 2004
Location: At the output stage
Send a message via Yahoo to mr_push_pull
Quote:
Originally Posted by Julf View Post
Aren't they intrinsically justified by the adjective "audiophile"?
I must be succeeding very well in hiding my sarcasm.
truth is that I'm curious how (if) those expensive fuses try to justify their prices. and let's say that since we're on diyaudio, we like to try to understand things, not just swallow whatever the hand wavers throw at us. otherwise we have the option of blindly ordering whatever component reaches the Stereophile recommended list.
__________________
we all love a good ol' stereotype until it's against us
  Reply With Quote
Old 22nd November 2012, 03:40 PM   #5576
Julf is offline Julf  Europe
diyAudio Member
 
Join Date: Oct 2011
Location: Amsterdam, The Netherlands
Quote:
Originally Posted by mr_push_pull View Post
I must be succeeding very well in hiding my sarcasm.
I apologize for emphasizing the sarcasm - I have found that sarcasm needs to be taken to slapstick levels to translate non-native-language and cultural boundaries.

Quote:
let's say that since we're on diyaudio, we like to try to understand things, not just swallow whatever the hand wavers throw at us.
Some of us do. Others resort to cargo cult engineering (random tweaking, tube rolling etc.)
  Reply With Quote
Old 22nd November 2012, 03:51 PM   #5577
diyAudio Member
 
Join Date: Jul 2010
Default Audiophile Fuses...

Are justified by their performance. If you do not believe it, try some at no risk yourself. Synergistic Research offers a money back guarantee on their fuses. Simple...
IME, actually using them, they offer performance gains well worth their price.
  Reply With Quote
Old 22nd November 2012, 04:03 PM   #5578
Julf is offline Julf  Europe
diyAudio Member
 
Join Date: Oct 2011
Location: Amsterdam, The Netherlands
Quote:
Originally Posted by barrows View Post
Are justified by their performance. If you do not believe it, try some at no risk yourself. Synergistic Research offers a money back guarantee on their fuses. Simple...
IME, actually using them, they offer performance gains well worth their price.
Looking at their web pages, I see a bunch of claims (" a noticeable increase in sound staging, resolution and air thanks to a lower noise floor and blacker backgrounds") but no explanation of what they think is causing the difference, apart from the "custom alloy treated with 2,000,000 volts of electricity!"

So what do you think causes the improved performance? And BTW, have you used double-blind ABX to compare them to regular fuses?
  Reply With Quote
Old 22nd November 2012, 04:08 PM   #5579
diyAudio Member
 
Join Date: Mar 2004
Location: At the output stage
Send a message via Yahoo to mr_push_pull
Quote:
Originally Posted by barrows View Post
Are justified by their performance. If you do not believe it, try some at no risk yourself. Synergistic Research offers a money back guarantee on their fuses. Simple...
IME, actually using them, they offer performance gains well worth their price.
this is diyaudio, right?
for many of us, at least part of being here is about having an interest on how things work. there are many subjective forums out there where no one is interested in how and why things work, good for them. I'm not aware about any explanation for the audiophile fuses and if it's only about that negative temperature coefficient material, it looks that they have the largest profit margin on the market. so I'm wondering if there's something else that can make a 2 cm piece of wire fitted on a tin socket improve the sound.
if we just succumb to the "just listen to it, it doesn't matter how it works" then there's no point for diyaudio to exist anymore.

Quote:
Originally Posted by Julf View Post
So what do you think causes the improved performance? And BTW, have you used double-blind ABX to compare them to regular fuses?
excuse my bluntness, but you haven't been around much, haven't you? bringing DBT in any discussion of the kind is naive. it's like telling "let's just be civil" to the guy with a bat. "DBT can't possibly work" is the bat, you can't fight it, it's made of tough aluminum
__________________
we all love a good ol' stereotype until it's against us

Last edited by mr_push_pull; 22nd November 2012 at 04:14 PM.
  Reply With Quote
Old 22nd November 2012, 04:20 PM   #5580
Julf is offline Julf  Europe
diyAudio Member
 
Join Date: Oct 2011
Location: Amsterdam, The Netherlands
Quote:
Originally Posted by mr_push_pull View Post
for many of us, at least part of being here is about having an interest on how things work
+1

I grew up on stuff like "Wireless World" where the authors - leading designers of their time, such as Williamson, Linsley-Hood, Bailey and Radford - explained their designs and why they thought they were better than previous designs.

I am very happy that Bruno has followed in their footsteps, and shared his design ideas to an amazing detail. The nCore deserves more than just to be chucked into a box with random "audiophile" paraphernalia based on subjective praise. But, oh, well, it is just a hobby, and what works for me might not work for you...
  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
Hypex problem, who can help Hansms Class D 9 18th August 2013 07:49 AM
Hypex steveww Class D 14 18th November 2010 02:44 PM
Question for those who have tried hypex smps with hypex modules avian Class D 12 3rd March 2009 10:30 AM
Hypex UcD 180AD + signal wires, Power Supply ST, Hypex Transformer TR100A c10h12n2 Swap Meet 7 7th July 2007 04:55 PM
FS: Hypex UcD 400/180AD, hypex toroid Archmage Swap Meet 4 14th November 2006 05:23 AM


New To Site? Need Help?

All times are GMT. The time now is 03:17 PM.


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