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

Multi-Way Conventional loudspeakers with crossovers

My xover board is buzzing!
My xover board is buzzing!
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 17th February 2009, 08:46 PM   #1
bastek is offline bastek  United States
diyAudio Member
Join Date: Dec 2005
Location: NY
Default My xover board is buzzing!

I was checking the woofer section of my Sigmas and playing with stuffing. With the woofer still connected but out of the cabinet, i noticed a buzzing sound in sync with the music coming from the woofer x/o board which is separate from the mid-high section, with separate input posts. This happens only with the volume at about 11-12 o'clock position, if i go any higher the amp goes into protection mode. Both left and right speakers make the noise. Is this normal? Note that i can hear distortion from the woofer before the crossover starts buzzing.
  Reply With Quote
Old 17th February 2009, 09:11 PM   #2
DcibeL is offline DcibeL  Canada
diyAudio Member
DcibeL's Avatar
Join Date: May 2003
Location: Saskatchewan
If your crossover has ferrite core inductors (anything that isn't air core), it's possible that you are saturating the core, which will cause the inductor to vibrate.

Recommendation: turn it down!
The power of Science compels you!
  Reply With Quote
Old 18th February 2009, 05:51 PM   #3
Pano is offline Pano  United States
diyAudio Moderator
Pano's Avatar
Join Date: Oct 2004
Location: SW Florida
My xover board is buzzing!
Yep - coils will sing! I've heard it before. (But not with aircore, IIRC). - - As Dcibel mentions.

Are they aircore?
  Reply With Quote
Old 18th February 2009, 08:25 PM   #4
knorke is offline knorke  Germany
diyAudio Member
knorke's Avatar
Join Date: Dec 2004
Location: Eichstetten
Air coils will sing to. The windings will vibrate due to magnetic forces. Foil capacitors sing also, the foil vibrates due to electrostatic forces. Hook up a coil or
cap with a series resistor directly to the amp, crank up
the volume. You will hear the (distorted) music!
What do we learn: mechanical stability of crossover parts is important.
  Reply With Quote


My xover board is buzzing!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
Sure Electronics New Tripath Board 4*100W class-D Amplifier Board 7788q Class D 354 17th March 2017 01:19 PM
Buzzing Pre-amp stevebell Solid State 10 12th June 2008 03:26 PM
My Cambridge 500SE, needs an output board (to replace internal DAC Board) slbender Digital Source 0 15th May 2008 01:36 AM
buzzing problems specter73 Solid State 13 28th October 2005 07:46 AM
Buzzing in A40 NickC Pass Labs 9 25th August 2003 11:42 AM

New To Site? Need Help?

All times are GMT. The time now is 05:42 AM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 16.67%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio