LP rumble destroying woofers? - Page 2 - diyAudio
Go Back   Home > Forums > Loudspeakers > Multi-Way

Multi-Way Conventional loudspeakers with crossovers

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
Reply
 
Thread Tools Search this Thread
Old 8th February 2010, 06:34 AM   #11
diyAudio Member
 
chris661's Avatar
 
Join Date: Feb 2008
Location: Sheffield
Blog Entries: 8
Quote:
Originally Posted by Don Hills View Post
The inductance change will not significantly affect the VC current. VC inductance is only significant at high frequencies, usually above the operating range of the driver. At low frequencies, the VC current is set by two factors:

1- The DC resistance of the voice coil.
2- The impedance peaks at the system resonance(s).

Most bass driver systems (driver/enclosure) are designed to be excursion limited, not power limited. That is, in most cases, at the lowest frequencies the driver will reach its excursion limits before reaching its heat limits.

For the current scenario, I guess we wait for the results of the failed driver post-mortem examination to decide the cause.
You haven't accounted for the changes of impedance when the cone actually moves somewhere.
Get a meter, put it across a woofer. Push the cone in (or out).

Chris
__________________
"Throwing parts at a failure is like throwing sponges at a rainstorm." - Enzo
My setup: http://www.diyaudio.com/forums/multi...tang-band.html
  Reply With Quote

Reply


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
Turntable rumble? bereanbill Analogue Source 4 4th May 2009 08:57 PM
Rumble Filter soloxp Subwoofers 5 27th July 2006 12:02 PM
Rumble in a song making my woofers move stupidly bigwill Subwoofers 8 16th October 2005 01:24 PM
Passive Rumble filter? fortyquid Multi-Way 5 30th November 2003 12:25 AM
Turntable rumble lordvader Analogue Source 10 1st April 2002 11:26 AM


New To Site? Need Help?

All times are GMT. The time now is 03:23 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2