dcB1 active crossover - 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 March 2012, 09:26 PM   #1
diyAudio Member
 
buzzforb's Avatar
 
Join Date: Oct 2010
Location: Burlington, NC
Default dcB1 active crossover

So, as f i did not have enough going on, I have started an active crossover based on the Xenover articles and the DCB1. MY question concern level control for the individual filters. Where do i place the pot that will allow for level adjustment and still maintain central volume control.
__________________
...Shape the sound , Man!
  Reply With Quote
Old 23rd March 2012, 09:43 PM   #2
Zen Mod is offline Zen Mod  Serbia
diyAudio Member
 
Zen Mod's Avatar
 
Join Date: Jan 2003
Location: ancient Batsch , behind Iron Curtain
right in front of final output buffer of each leg

that way you can use highish value (50K) for pot

for legs set to max ( without need for atten.) either do not use pot , or short in-out pins permanently
__________________
my Papa is smarter than your Nelson !
clean thread; Cook Book;PSM LS Cook Book;Baby DiyA ;Mighty ZM's Bloggg;Papatreasure;Papa... by Mighty ZM
  Reply With Quote
Old 23rd March 2012, 09:55 PM   #3
diyAudio Member
 
buzzforb's Avatar
 
Join Date: Oct 2010
Location: Burlington, NC
If using 1st order filter, pot goes in front of ouput buffer on high pass and takes place of pulldown resistor on low pass? Using fets at Idss, so offset pot not part of equation. Could be misunderstanding you or not making sense. I specialize in both.
__________________
...Shape the sound , Man!
  Reply With Quote
Old 23rd March 2012, 10:06 PM   #4
Zen Mod is offline Zen Mod  Serbia
diyAudio Member
 
Zen Mod's Avatar
 
Join Date: Jan 2003
Location: ancient Batsch , behind Iron Curtain
see example

A1 is input buffer

A2,A3,A4 are output buffers of their respective legs

you see where pots are situated

for buffers and other buffer cells use whatever your poison is ......

btw - there you can see that guys from Elektor were cap-lovers .......
Attached Images
File Type: jpg example.jpg (77.4 KB, 196 views)
__________________
my Papa is smarter than your Nelson !
clean thread; Cook Book;PSM LS Cook Book;Baby DiyA ;Mighty ZM's Bloggg;Papatreasure;Papa... by Mighty ZM
  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
The Best Active Crossover - Here! Samuel Jayaraj Multi-Way 34 30th September 2013 01:44 PM
Help for active crossover for 2.0 pra3718 Chip Amps 25 11th January 2012 12:49 PM
Passive crossover into active crossover hahfran Multi-Way 16 10th February 2008 07:16 PM
active crossover barossi Multi-Way 7 14th August 2006 09:37 AM
XVR1 active crossover, discrete active stage promitheus Pass Labs 18 22nd July 2002 02:29 AM


New To Site? Need Help?

All times are GMT. The time now is 06:51 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