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
Thread Tools Search this Thread
Old 20th October 2003, 03:22 PM   #1
diyAudio Member
Join Date: Mar 2002
Location: Montreal, Quebec, Canada
Question SOZ mod, Regulated supply VS 2 simple CC pullups.

In an attempt to further filter the power supply from the SOZ amp, what's better, regulating the power supply, or, simple BJT based constant current pull-ups?

What type of performance difference should I expect in each case?
  Reply With Quote
Old 20th October 2003, 03:48 PM   #2
The one and only
Nelson Pass's Avatar
Join Date: Mar 2001
Using CCS's on the positive rail will require some offset
stabilization not included in the original circuit, but is
otherwise do-able, and will result in a more efficient circuit
with even less damping factor.

ZV6 will be addressing this, so watch for it.

Regulating the supplies works well too.
  Reply With Quote
Old 20th October 2003, 04:07 PM   #3
diyAudio Member
Join Date: Mar 2002
Location: Montreal, Quebec, Canada
Originally posted by Nelson Pass
more efficient circuit with even less damping factor.
When you say less damping factor, you mean that the amp will have a higher damping factor value?

I forgot, the higher the damping factor, the better the amp's capability to stop the woofer, right?
  Reply With Quote
Old 20th October 2003, 04:49 PM   #4
moe29 is offline moe29  United States
diyAudio Member
moe29's Avatar
Join Date: Dec 2002
Location: Florida
Send a message via AIM to moe29 Send a message via Yahoo to moe29
an updated SOZ cool!!!

i built a regulated supply for my SOZ, from the Zen variations Part 3
article, and it worked quite well. So you should try that out while
waiting for Zen V6. For some reason though, i'm back to using a
Pi filter for my X-SOZ attempt (a la Henrik's schematic).

With all the presents from Mr. Pass lately, i think he figured out a way to
get UPS to deliver some extra hours for his days
  Reply With Quote


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
regulated 5V DC supply Tomatito Tubes / Valves 51 29th October 2012 07:00 PM
Idea(s) for simple HV regulated psu rotation Tubes / Valves 6 21st February 2009 08:14 PM
3 Pin regulated supply VS zener based supply KevinLee Solid State 3 15th September 2008 02:40 PM
Regulated DC PSU - Plain and simple please? GlidingDutchman Solid State 156 26th June 2008 12:20 PM
regulated supply +- 28V -20A sss Power Supplies 8 14th June 2005 07:30 AM

New To Site? Need Help?

All times are GMT. The time now is 11:55 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