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

Volume Displacement Calculation
Volume Displacement Calculation
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 10th March 2007, 07:21 PM   #1
lovitz is offline lovitz  Canada
diyAudio Member
 
Join Date: Apr 2005
Location: Vancouver
Default Volume Displacement Calculation

How does one calculate the volume displacement of the driver in a vented enclosure?

Bassbox Pro is giving me this option, but I can't find anything on how to calculate it.

Thanks.
  Reply With Quote
Old 10th March 2007, 10:28 PM   #2
Svante is offline Svante  Sweden
diyAudio Member
 
Svante's Avatar
 
Join Date: Feb 2004
Location: Stockholm
Default Re: Volume Displacement Calculation

Quote:
Originally posted by lovitz
How does one calculate the volume displacement of the driver in a vented enclosure?

Bassbox Pro is giving me this option, but I can't find anything on how to calculate it.

Thanks.
I'm not sure I fully understans the question, but the volume displacement of the driver is always Sd*X, where X is the excursion of the cone (which is limited to Xmax).

The volume displacement of the system is larger around the helmholtz frequency, since most of the volume displacement is taken care of by the port. There is no simple formula that covers the entire frequency range for the system volume displacement as a function of driver excursion.
__________________
Simulate loudspeakers: Basta!
Simulate the baffle step: The Edge
  Reply With Quote
Old 10th March 2007, 10:33 PM   #3
Cal Weldon is offline Cal Weldon  Canada
Speakerholic
diyAudio Moderator
 
Cal Weldon's Avatar
 
Join Date: Jan 2004
Location: Near Vancouver
Volume Displacement Calculation
Default Re: Volume Displacement Calculation

or are you asking how much room the driver takes up in the box?
__________________
planet10 needs your help:
Let's help Ruth and Dave
  Reply With Quote
Old 10th March 2007, 11:09 PM   #4
lovitz is offline lovitz  Canada
diyAudio Member
 
Join Date: Apr 2005
Location: Vancouver
oh don't tell me it's that easy Cal....haha or is it?
  Reply With Quote
Old 10th March 2007, 11:45 PM   #5
Svante is offline Svante  Sweden
diyAudio Member
 
Svante's Avatar
 
Join Date: Feb 2004
Location: Stockholm
Ah, so there is a box i bassbox to fill in the volume displacement of the driver, and you are wondering what to put there?

Ok, could be that it is the room that the driver takes... Silly me.
__________________
Simulate loudspeakers: Basta!
Simulate the baffle step: The Edge
  Reply With Quote
Old 11th March 2007, 12:52 AM   #6
lovitz is offline lovitz  Canada
diyAudio Member
 
Join Date: Apr 2005
Location: Vancouver
I think your right. I saw volume and liters and thought it was something different.

So all I have to do is convert millimeters to liters for that value??


Thanks again guys!
  Reply With Quote

Reply


Volume Displacement CalculationHide 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
Volume Displacement For SPL Chart kelticwizard Multi-Way 12 24th November 2013 09:58 PM
volume calculation Pbassred Multi-Way 7 5th June 2005 05:58 PM
displacement volume for 15inch holger honda Multi-Way 2 22nd November 2004 12:12 PM
Box volume calculation questions. Nappylady Subwoofers 2 29th March 2004 09:03 AM
Help with volume calculation andrew01 Multi-Way 2 1st July 2003 12:32 PM


New To Site? Need Help?

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


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 16.67%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright ©1999-2017 diyAudio
Wiki