Thump on TA2020 - diyAudio
Go Back   Home > Forums > Amplifiers > Class D
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Class D Switching Power Amplifiers and Power D/A conversion

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 8th November 2012, 07:02 AM   #1
diyAudio Member
Join Date: Jan 2012
Location: Leersum
Default Thump on TA2020

Recently I put together an Arjen Helder ta2020 with great result. It plays beautifull and no thump on or off.

But I could not help myself and put in a pair off Russian oil input caps (2 mfd) and a Dact CT2 for volume control. Now I have a huge thump when switching the amp on, after that it plays beautiful.

When I measure it there is as much as 200mv dc at startup which goes back to almost zero in half a minute or so. Adjusting the offset does not help to eliminate the thump.

Last edited by Xerxes75; 9th November 2012 at 02:50 PM. Reason: Making it more clear
  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
turn off thump jayme Tubes / Valves 26 10th December 2015 02:50 PM
difference between ta2020 and ta2020-20 amiti Class D 12 16th January 2012 08:04 PM
switching thump... wintermute Solid State 14 11th September 2009 11:33 AM
What is that thump,thump,thump? 65blkbkgt Car Audio 7 17th June 2007 01:35 AM
Speaker thump Vivek Multi-Way 5 31st May 2002 09:16 AM

New To Site? Need Help?

All times are GMT. The time now is 06:40 PM.

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