Baxandall active tone control - diyAudio
Go Back   Home > Forums > Amplifiers > Solid State
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Solid State Talk all about solid state amplification.

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 16th April 2008, 10:01 AM   #1
jenks is offline jenks  United Kingdom
diyAudio Member
Join Date: Mar 2008
Send a message via MSN to jenks
Default Baxandall active tone control

Does anybody out there understand (and is able to explain!) how the all of the components in the baxandall circuit I've attached work to modify the frequency response of the input signal?

I imported this circuit into multisim and added a 'middle' cut and boost control that I came across here...

The output looks really nice and I'm planning on building the circuit. I just want to really understand how it works. I know a bit about laplace, fourier, transfer functions etc so if anybody out there can explain how each component serves to affect the frequency response of the input signal then please do!

Cheers, Jenks.
Attached Images
File Type: jpg multisim_scan.jpg (20.7 KB, 898 views)
  Reply With Quote
Old 16th April 2008, 10:09 AM   #2
jenks is offline jenks  United Kingdom
diyAudio Member
Join Date: Mar 2008
Send a message via MSN to jenks
Default Here is the...

Baxandall circuit that I took my bass and treble controls from.
Attached Images
File Type: jpg baxandall_scan.jpg (20.2 KB, 891 views)
  Reply With Quote
Old 16th April 2008, 11:14 AM   #3
sreten is offline sreten  United Kingdom
diyAudio Member RIP
Join Date: Nov 2003
Location: Brighton UK /sreten.
  Reply With Quote
Old 18th April 2008, 09:18 PM   #4
cfcubed is offline cfcubed  United States
diyAudio Member
cfcubed's Avatar
Join Date: Jul 2007
The info above really answers you question(s) I think, but thought I'd share my own tone excursions.

Wanting to add some degree of tone control to a couple headamps I built, dove into two attempts:

BCJ tube amp with Bass n Treble and Fender Tone Stack B M T but not incorporated into those particular amps.

I made them switchable & eventually found myself not using them much. Issues may have been impedance and I my passive implementation.

Finding I often moved Bass & Treble in opposing directions when I did use them at all, tried making a portable Tilt EQ which I'm liking best. Perhaps because its not passive (zero gain). Only real change I would make would be to a 20k pot (like panny mentioned in thread) cause I'm using little of the range.

Just some thoughts... Have fun,
  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
Active filter/Tone control Amagic Analog Line Level 6 26th October 2016 02:32 AM
baxandall tone control 9am53 Tubes / Valves 28 27th November 2015 06:05 PM
How can I integrate a Baxandall Tone Control roger-k Solid State 9 16th July 2007 10:33 AM
3-Ch LM3875 w/ Tone Control and Active Crossover StalfoS Chip Amps 6 11th January 2005 12:54 AM
Baxandall Tone Control zee Parts 3 22nd December 2004 01:11 AM

New To Site? Need Help?

All times are GMT. The time now is 07:11 AM.

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright 1999-2017 diyAudio

Content Relevant URLs by vBSEO 3.3.2