F6 Amplifier - Page 518 - diyAudio
Go Back   Home > Forums > Amplifiers > Pass Labs

Pass Labs This forum is dedicated to Pass Labs discussion.

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 23rd August 2013, 06:28 PM   #5171
generg is offline generg  Germany
dog dead, me alive
diyAudio Member
 
generg's Avatar
 
Join Date: Jul 2009
Location: Near Frankfurt
Is the 100kpot connected to speaker ground?
__________________
and the First Wtt is......a really First Class PSS Idea
  Reply With Quote
Old 23rd August 2013, 06:29 PM   #5172
generg is offline generg  Germany
dog dead, me alive
diyAudio Member
 
generg's Avatar
 
Join Date: Jul 2009
Location: Near Frankfurt
Or use simply two resistors giving you the reduced values of 100-200mV
__________________
and the First Wtt is......a really First Class PSS Idea
  Reply With Quote
Old 23rd August 2013, 06:30 PM   #5173
Ryssen is offline Ryssen  Sweden
diyAudio Member
 
Ryssen's Avatar
 
Join Date: Dec 2003
Location: Sweden--> Here
Yes,it`s sinewave.
It sounds just fine.
I´ll contine to fiddle and see if I come up with sommething.
__________________
Regards Åke
  Reply With Quote
Old 23rd August 2013, 06:44 PM   #5174
Ryssen is offline Ryssen  Sweden
diyAudio Member
 
Ryssen's Avatar
 
Join Date: Dec 2003
Location: Sweden--> Here
Click the image to open in full size.

Here is one that I got when turning one off and checking the levels.
But I guess its that first one harmonics thats to large?

Yes its connected to speaker ground.
__________________
Regards Åke
  Reply With Quote
Old 23rd August 2013, 06:54 PM   #5175
OllBoll is offline OllBoll  Sweden
diyAudio Member
 
Join Date: Nov 2010
Quote:
Originally Posted by Ryssen View Post
Click the image to open in full size.

Here is one that I got when turning one off and checking the levels.
But I guess its that first one harmonics thats to large?

Yes its connected to speaker ground.
If I'm not mistaken it should instead look like this:

Only some 2nd and 3rd harmonics visible and the rest down below the noise floor.
Attached Images
File Type: jpg Untitled-1_zps8b923810.jpg (83.6 KB, 200 views)
  Reply With Quote
Old 23rd August 2013, 07:00 PM   #5176
generg is offline generg  Germany
dog dead, me alive
diyAudio Member
 
generg's Avatar
 
Join Date: Jul 2009
Location: Near Frankfurt
Looks like overload...

What is the value for soundcard input?

Lower the input value in Windows...
__________________
and the First Wtt is......a really First Class PSS Idea
  Reply With Quote
Old 23rd August 2013, 07:02 PM   #5177
OllBoll is offline OllBoll  Sweden
diyAudio Member
 
Join Date: Nov 2010
Thought that too, looks very similar to clipping.
  Reply With Quote
Old 23rd August 2013, 07:02 PM   #5178
generg is offline generg  Germany
dog dead, me alive
diyAudio Member
 
generg's Avatar
 
Join Date: Jul 2009
Location: Near Frankfurt
In your picture the small sine curve on the upper place is clipping... Why?
__________________
and the First Wtt is......a really First Class PSS Idea
  Reply With Quote
Old 23rd August 2013, 07:11 PM   #5179
Ryssen is offline Ryssen  Sweden
diyAudio Member
 
Ryssen's Avatar
 
Join Date: Dec 2003
Location: Sweden--> Here
I don´t know the sens of the lineinput,it´s an Acer.
If I turn the pot down and just move it a little I can get the same spectrum that ollboll showed.
__________________
Regards Åke

Last edited by Ryssen; 23rd August 2013 at 07:13 PM.
  Reply With Quote
Old 23rd August 2013, 07:16 PM   #5180
generg is offline generg  Germany
dog dead, me alive
diyAudio Member
 
generg's Avatar
 
Join Date: Jul 2009
Location: Near Frankfurt
Yes, make the input to the laptop so small that you get this picture, what value is after the pot.
Important that you keep the 2.83V at the 8R

K3 or k2 dominant ? Your F6....
__________________
and the First Wtt is......a really First Class PSS Idea
  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
New F6 diy coming soon ? Nounours18200 Pass Labs 37 31st August 2012 05:35 PM
Hi Vi F6 box ioro Multi-Way 4 15th April 2012 09:27 PM
Whats happening with F6? jugoslavija Pass Labs 1 1st November 2011 08:39 AM
Hi-Vi F6 kkosiba Multi-Way 14 9th November 2007 09:38 AM
F6 traw Pass Labs 7 2nd November 2007 08:09 PM


New To Site? Need Help?

All times are GMT. The time now is 04:39 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