Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Pass Labs This forum is dedicated to Pass Labs discussion.

10w Xsoz
10w Xsoz
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
Thread Tools Search this Thread
Old 4th April 2004, 02:41 PM   #101
finwbu is offline finwbu  Finland
diyAudio Member
finwbu's Avatar
Join Date: Dec 2002
Location: Helsinki
10w Xsoz
Default blower-controll

you need no trick, only change C1 .
regards walter
  Reply With Quote
Old 6th November 2004, 10:24 AM   #102
Tyimo is offline Tyimo  Hungary
diyAudio Member
Join Date: Nov 2002
Location: Hungary
Default 1 ohm resistors?

Mad K and Henrik! I saw your schematics of the XSOZ variations and I would like to ask is it realy possible to leave out the R5-6-7 1Ohm power resistors from the circuit? I saw that you leave out even the wire connection between R3 and R4? Could you tell me why is this better and is it also possible with the original SOZ?
What is the consequence if I use higher value resistors for R1-2-3-4? I mean over 8 ohms?
  Reply With Quote
Old 7th November 2004, 08:50 AM   #103
Henrik is offline Henrik  Denmark
diyAudio Member
Join Date: Feb 2002
Location: Copenhagen Denmark
Hi Tyimo

R7 in the original SOZ keeps the gain down.
When you apply X to soz you loose some gain caused by the feedbackloop.
By shorting R7 you get max gain from the diffpair.
When R7 is shorted it means that R5 and R6 is coupled in parallel and is then considerd as one resistor at 0.5 Ohm.
R3 an R4 is also parallel and as such works as one resistoer at 4 Ohm.
R5/6 and R3/4 is coupled in series wich mens they operate as one resistor at 4.5 Ohm when R7 is shorted.

If you use greater values, you primarily looses some power.
  Reply With Quote
Old 7th November 2004, 05:10 PM   #104
Tyimo is offline Tyimo  Hungary
diyAudio Member
Join Date: Nov 2002
Location: Hungary
Thanks Henrik!!
What about to use 12 Ohm instead of the 8.5R? How many power would I loose? How can I calculate it?
  Reply With Quote


10w XsozHide 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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Some kinda XSoZ Fuling Pass Labs 9 27th June 2004 07:17 PM
XSOZ/Complementary Zen heat sinking question needtubes Pass Labs 5 5th April 2004 09:28 PM
quick heatsink question for 5w XSOZ enochRoot Pass Labs 7 21st March 2004 07:23 PM
Is this a choke loaded Xsoz? Fuling Pass Labs 10 31st January 2004 12:20 PM

New To Site? Need Help?

All times are GMT. The time now is 03:07 PM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.79%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio