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

Solid State Talk all about solid state amplification.

What is clipping?
What is clipping?
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 24th February 2004, 10:33 PM   #1
guitargully is offline guitargully  United States
diyAudio Member
Join Date: Nov 2003
Location: Detriot, MI
Send a message via AIM to guitargully
Default What is clipping?

Hey, I was just wondering what clipping in an amp really is, besides somthing that damages speakers. I think i read somthin about square waves.. I dunno. Is it audiable or just somthin you can see with an 0-scope? Just curious I guess.. And what causes it? Thanks
say what? .. be careful with your ears.
  Reply With Quote
Old 24th February 2004, 11:16 PM   #2
Cybergent is offline Cybergent  Germany
diyAudio Member
Join Date: Jan 2004
Location: Germany / Bavaria / Augsburg
When you try to jump higher in a room than the ceiling is you smash your head.

Clipping is the same for the signal in an amplifier.

When the amplitude exceeds the rail voltage the signal is limited, i.e. clipped. So a sine wave gets flat on top and bottom. The higher you drive the signal the more it looks like a square wave.

And yes, this can be seen on an oscilloscope.
Best Regards,
  Reply With Quote
Old 24th February 2004, 11:17 PM   #3
Solid Snake is offline Solid Snake  United States
diyAudio Member
Join Date: Feb 2003
Yes, it's both audible and visible with a scope. If your amp is asked to produce a 50v peak to peak sine wave and your amps rails are only +/-20v, the top and bottom of the wave will be cut off, or clipped. This is supposed to be the most damaging to tweeters although it's not good for woofers either.
  Reply With Quote
Old 25th February 2004, 04:06 AM   #4
B.VDBOS is offline B.VDBOS  New Zealand
diyAudio Member
B.VDBOS's Avatar
Join Date: Aug 2003
Location: Auckland, New Zealand
Look here http://sound.westhost.com/amp-sound.htm ,scroll down about 1/4 the page to Clipping Distortion
  Reply With Quote
Old 25th February 2004, 06:46 AM   #5
thylantyr is offline thylantyr  United States
diyAudio Member
Join Date: Feb 2001
Location: Mars
  Reply With Quote
Old 25th February 2004, 08:24 PM   #6
ChocoHolic is offline ChocoHolic  Germany
diyAudio Member
Join Date: Dec 2003
Location: Munich
Hi Guitargully!

Yes you can see this clipping on the scope.
As the other always have described, the signal will
be cut above a certain limit. Transistor amplifiers show
a very sharp limit and it is easy to see this on the scope.

You can also hear it.
If normal Music is played you will notice more and more agressive
distorsion and sometimes even missing dynamics.

Rule of thumb for a party:
How much clipping your speakers will have survive, depends
very much on the number of beers you may give to the DJ.
Or on how proper you have adjusted a limiter...

During clipping the average power is quite high, because:
- The large signals are more rectangular (cut the of a sine wave).
- During the more silent sequences of the song the amplifier may not clip, but the power is still quite high (compared to what they would be during proper operation)
This causes a lot of heat in the speaker.
Please note. Not only the Woofer is in danger, but also the tweeter.
The spectrum of rectangular signal shows a lot of components with higher frequencies.

  Reply With Quote


What is clipping?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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Non-Clipping Amplifier ph_christensen Solid State 46 2nd March 2014 06:26 AM
Clipping richie00boy Class D 2 16th January 2008 05:36 AM
About Sonic Clipping Ciu Class D 6 14th April 2005 12:32 PM
Clipping GC? drfrink24 Chip Amps 29 1st April 2005 10:14 PM
Help with +VE clipping matth Solid State 7 21st June 2003 07:03 AM

New To Site? Need Help?

All times are GMT. The time now is 02:20 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