47labs Gaincard: new circuit. More info available? - diyAudio
Go Back   Home > Forums > Amplifiers > Chip Amps

Chip Amps Amplifiers based on integrated circuits

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 26th March 2005, 07:45 AM   #1
Franz G is offline Franz G  Switzerland
diyAudio Member
 
Franz G's Avatar
 
Join Date: Jun 2004
Location: Bern / Switzerland
Default 47labs Gaincard: new circuit. More info available?

Quote:
Gaincard with new circuit topology

Junji Kimura delivers again! He came to a new circuit topology of Gaincard which resulted in even more open sound with a touch of sweetness in it. The new orders are all delivered with the new circuitry.

We offer the modification for those who already have the old version Gaincard for $200 + shipping. Please contact SAKURA SYSTEMS for details.
... copied from the www.sakurasystems.com site.

I could not find some info, up to now, what the changes are.

Snubber?

T-network is not very likely, as the Gaincard is noninverted and nonbuffered.

Franz
  Reply With Quote
Old 26th March 2005, 01:32 PM   #2
diyAudio Member
 
Peter Daniel's Avatar
 
Join Date: Jul 2002
Location: Toronto, Canada
Send a message via AIM to Peter Daniel
I would speculate that they finally got rid of Zobel
__________________
www.audiosector.com
“Do something really well. See how much time it takes. It might be a product, a work of art, who knows? Then give it away cheaply, just because you feel that it should not cost so much, even if it took a lot of time and expensive materials to make it.” - JC
  Reply With Quote
Old 26th March 2005, 03:10 PM   #3
paulb is offline paulb  Canada
diyAudio Member
 
Join Date: Jun 2001
Location: Calgary
Well, if it says topology, that would imply more than removing a couple of components.
Of course, what they imply and what is real are two different things. Maybe they changed the brand of bypass caps or something.
$200 to tell you how to remove the Zobel?
  Reply With Quote
Old 26th March 2005, 05:17 PM   #4
diyAudio Member
 
Join Date: Jun 2004
Location: Copenhagen
Hi paulb !

$200 to tell you how to remove the Zobel?

Sounds realistic.

Thorsten
  Reply With Quote
Old 26th March 2005, 06:34 PM   #5
Banned
 
Join Date: Mar 2003
Location: Lisbon, Portugal
Quote:
Originally posted by Franz G
I could not find some info, up to now, what the changes are.
Maby this time they didn't just copy the datasheet?

Maby this time they copied us?
  Reply With Quote
Old 26th March 2005, 06:46 PM   #6
diyAudio Member
 
Join Date: Apr 2003
Location: Seattle
Maybe they just put a 3886 in the same chassis.. Sounds about right for $200
  Reply With Quote
Old 26th March 2005, 07:42 PM   #7
breez is offline breez  Finland
diyAudio Member
 
Join Date: Jul 2004
Location: Finland
Quote:
Originally posted by carlosfm


Maby this time they didn't just copy the datasheet?

Maby this time they copied us?
I wouldn't be one bit surprised
  Reply With Quote
Old 26th March 2005, 08:33 PM   #8
Banned
 
Join Date: Mar 2003
Location: Lisbon, Portugal
Quote:
Originally posted by motherone
Maybe they just put a 3886 in the same chassis.. Sounds about right for $200
Nah... it's just for resoldering those lowsy joints.
  Reply With Quote
Old 26th March 2005, 08:53 PM   #9
kmj is offline kmj  Sweden
diyAudio Member
 
kmj's Avatar
 
Join Date: Feb 2004
Location: Falkenberg
They've probably got their hands on some nice blackgate capacitors and caddok resistors used them instead.

You guys don't accually think they made some minorchanges just to get more money out of the consumers??????


anyway, since i'm posting so:
whats the difference between mkp-branded capacitors and mpt-branded?
  Reply With Quote
Old 26th March 2005, 09:40 PM   #10
sss is offline sss  Israel
diyAudio Member
 
sss's Avatar
 
Join Date: Jul 2003
Location: Israel , haifa
Send a message via ICQ to sss
i saw some pics of the "real" gainclone but no one knows for sure if its really it
and the guys that have one wont open it up
so are those pics real? with those bad solder joints ......
__________________
if you are not living on the edge you are taking too much space
  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
WTB: 47Labs phono pcb fishball79 Swap Meet 0 11th November 2006 04:53 AM
47labs Gaincard! reMC Swap Meet 7 8th March 2006 10:32 AM
47labs Gaincard rewire? young_pup Chip Amps 12 13th November 2005 06:17 PM
Does anyone compare phono stage both XONO & 47LABS ANALOG GUY Analogue Source 11 1st October 2005 08:24 AM
original gaincard circuit skyraider Solid State 1 23rd January 2004 10:18 PM


New To Site? Need Help?

All times are GMT. The time now is 12:50 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