Problem with a speakers impedance - diyAudio
Go Back   Home > Forums > Loudspeakers > Full Range
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

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 6th March 2012, 09:55 PM   #1
diyAudio Member
Join Date: Dec 2011
Default Problem with a speakers impedance

Could someone please tell me why the impedance of a speaker as measured
by a digital multimeter is 4 to 5 ohms but if i just hit the side of the speaker
with my palm the resistance drops to 0,1 ohms.Is this normal ?
The speaker is a three way Fj forte piano.
I measured another speaker to 6-7 ohms and if i move the woofer cone
with my hand the resistance rises.
Is there an odd behavior around the crossover section that doesn't tolerate
any shock ?
I must say that a krell connected to the fj's had two fuses burned.
  Reply With Quote
Old 6th March 2012, 10:06 PM   #2
diyAudio Member
sofaspud's Avatar
Join Date: Nov 2005
Location: San Antonio
My guess... a coil moving in a magnetic field produces a current which may either add or subtract from the current from the DMM.
It is error only, and not truth, that shrinks from enquiry. - Thomas Paine
  Reply With Quote
Old 6th March 2012, 10:11 PM   #3
diyAudio Member
Join Date: Dec 2011
Thanks for the reply.
Well obviously this is normal but a resistance of just 0,1 ohm is a short circuit
and the krell agreed.
  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
Impedance problem Of O/P Transformer renjiish Tubes / Valves 2 15th April 2011 11:18 PM
Speakers impedance ixe13 Tubes / Valves 3 8th June 2008 06:03 PM
impedance problem udip Solid State 1 16th November 2004 04:12 PM
OT impedance problem m0rg Tubes / Valves 2 9th July 2004 04:58 AM
Having a problem with impedance measurement. prash Multi-Way 29 17th December 2002 04:24 AM

New To Site? Need Help?

All times are GMT. The time now is 05:11 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