Go Back   Home > Forums > Source & Line > Digital Source

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

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 13th June 2006, 04:00 PM   #2991
6h5c is offline 6h5c  Netherlands
One Seriously Addicted to Audio and Electronics
diyAudio Member
 
6h5c's Avatar
 
Join Date: Apr 2004
Location: Heerhugowaard
Hey, made it to page 300 .

Quote:
Originally posted by awpagan
had thought about the bc516 in the out[ut when i was biulding it, any diff in a sim?

allan
No, you can drop them right in.

Quote:
Originally posted by rowemeister
Well the Black Gate caps certainy sound more open/clean than the LCR and AMPOHM caps.
They seem to allow the music to play with more pace too.
Quote:

Yes it is tighter and its getting tighter with use too.

Brent
Hey, that's a nice result Brent. Did you by any chance compare them to parallel-super-E-config BG N/NX types?

Regards,

Ray.
__________________
Gonna buy my little girl a pink soldering-iron
The new DOS-CFP board is out!
  Reply With Quote
Old 13th June 2006, 04:20 PM   #2992
disco is offline disco  Netherlands
diyAudio Member
 
disco's Avatar
 
Join Date: Apr 2006
Location: Holland
Quote:
Originally posted by disco
Forget the matching mate. From my experience stereo balance is indifferent to a 2% mismatch.
Quote:
Originally posted by 6h5c
But the RON/RO LON/LO sections of the filter need to be as equal as possible.

Ray.
Because of DC offset?
__________________
jaap
  Reply With Quote
Old 13th June 2006, 04:21 PM   #2993
SimontY is offline SimontY  United Kingdom
diyAudio Member
 
SimontY's Avatar
 
Join Date: May 2003
Location: Sheffield, North England
Send a message via MSN to SimontY
Eight more...
  Reply With Quote
Old 13th June 2006, 06:24 PM   #2994
diyAudio Member
 
Fidelity Audio's Avatar
 
Join Date: Dec 2005
Location: Doncaster England
Quote:
Originally posted by 6h5c

Hey, that's a nice result Brent. Did you by any chance compare them to parallel-super-E-config BG N/NX types?

Regards,

Ray.
I ordered some BG N when I ordered the BG AC but they sent BG C instead of the N so they have gone back.
I will test the difference when the replacements come

Brent
  Reply With Quote
Old 13th June 2006, 08:09 PM   #2995
6h5c is offline 6h5c  Netherlands
One Seriously Addicted to Audio and Electronics
diyAudio Member
 
6h5c's Avatar
 
Join Date: Apr 2004
Location: Heerhugowaard
Quote:
Originally posted by disco
Because of DC offset?
No, the PWM-signals have to be subtracted (by the differential input stage in this case) to produce the desired output signal. See page 21 of the SM5872 datasheet. So it's nice to have two equal halves of the passive filter for each output .

Quote:
Originally posted by rowemeister
I ordered some BG N when I ordered the BG AC but they sent BG C instead of the N so they have gone back.
I will test the difference when the replacements come

Brent
Hmmm, bummer. I'm curious what their sound will be like. Still haven't decided on my output caps yet...

Regards,

Ray.
__________________
Gonna buy my little girl a pink soldering-iron
The new DOS-CFP board is out!
  Reply With Quote
Old 13th June 2006, 09:21 PM   #2996
disco is offline disco  Netherlands
diyAudio Member
 
disco's Avatar
 
Join Date: Apr 2006
Location: Holland
Quote:
Originally posted by disco
Forget the matching mate. From my experience stereo balance is indifferent to a 2% mismatch.
Quote:
Originally posted by 6h5c
But the RON/RO LON/LO sections of the filter need to be as equal as possible.
Quote:
Originally posted by disco
Because of DC offset?
Quote:
Originally posted by 6h5c
No, the PWM-signals have to be subtracted (by the differential input stage in this case) to produce the desired output signal. See page 21 of the SM5872 datasheet. So it's nice to have two equal halves of the passive filter for each output .
Ray,
There's a slight misunderstanding going on as I wrote about the stereo balance being indifferent to a slight mismatch in coupling caps. Of cause filter components are to be as tight as possible, especially for the one following the DAC. Right?
Regards, Jaap
__________________
jaap
  Reply With Quote
Old 13th June 2006, 09:48 PM   #2997
awpagan is offline awpagan  Australia
diyAudio Member
 
Join Date: Nov 2004
Location: sydney
Quote:
Originally posted by disco








Ray,
There's a slight misunderstanding going on as I wrote about the stereo balance being indifferent to a slight mismatch in coupling caps. Of cause filter components are to be as tight as possible, especially for the one following the DAC. Right?
Regards, Jaap
Jaap
understandable misunderstanding

as for the 1%
they are polypropylene not polyester.
cheaper for matching

if the BG's are out of production we are going to have to find something else

allan
__________________
Indecision makes the world gone round.
Maybe
  Reply With Quote
Old 14th June 2006, 04:16 AM   #2998
6h5c is offline 6h5c  Netherlands
One Seriously Addicted to Audio and Electronics
diyAudio Member
 
6h5c's Avatar
 
Join Date: Apr 2004
Location: Heerhugowaard
Quote:
Originally posted by awpagan
looking at other caps for the filter of this buffer
polypropylene
http://au.farnell.com/jsp/endecaSear...SKU=106780&N=0
or
polystyrene
http://au.farnell.com/jsp/endecaSear...sp?SKU=9520414

i've had experience with the polystyrene's

any comments about the polypropylene?

both are 1%
mica's are 1% also, these are cheaper for better matching

allan
Oh, ok Jaap. But Allan was talking about the filter caps, which you replied to .

Ray.
__________________
Gonna buy my little girl a pink soldering-iron
The new DOS-CFP board is out!
  Reply With Quote
Old 14th June 2006, 04:24 AM   #2999
6h5c is offline 6h5c  Netherlands
One Seriously Addicted to Audio and Electronics
diyAudio Member
 
6h5c's Avatar
 
Join Date: Apr 2004
Location: Heerhugowaard
Quote:
Originally posted by awpagan
as for the 1%
they are polypropylene not polyester.
cheaper for matching

if the BG's are out of production we are going to have to find something else

allan
Anyway,

I've tried all three of them, and I like silver-mica and polystyrene the best. In the filter that is .

Ray.
__________________
Gonna buy my little girl a pink soldering-iron
The new DOS-CFP board is out!
  Reply With Quote
Old 14th June 2006, 04:25 AM   #3000
6h5c is offline 6h5c  Netherlands
One Seriously Addicted to Audio and Electronics
diyAudio Member
 
6h5c's Avatar
 
Join Date: Apr 2004
Location: Heerhugowaard


3000!!!!!!!


__________________
Gonna buy my little girl a pink soldering-iron
The new DOS-CFP board is out!
  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



New To Site? Need Help?

All times are GMT. The time now is 10:42 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