Definition of 4th order acoustic crossover - diyAudio
Go Back   Home > Forums > Loudspeakers > Multi-Way
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

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
Thread Tools Search this Thread
Old 7th April 2004, 06:57 PM   #1
diyAudio Member
moving_electron's Avatar
Join Date: Jan 2004
Location: Where the rain does fall but the trees grow tall
Default Definition of 4th order acoustic crossover

Does 4"th order acoustic slope" in a crossover" simply mean a typical straight 24dB crossover such as a Linkwitz-Riley or does it have some other meaning?
  Reply With Quote
Old 7th April 2004, 07:00 PM   #2
tiroth is offline tiroth  United States
diyAudio Member
Join Date: Dec 2001
Location: Pittsburgh, PA, USA
It means that the sum of the electrical and driver acoustic responses is 4th order LR.

i.e. you take into account the acoustic response of the driver, instead of assuming it is maximally flat.
  Reply With Quote
Old 7th April 2004, 07:01 PM   #3
sreten is offline sreten  United Kingdom
diyAudio Member RIP
Join Date: Nov 2003
Location: Brighton UK
It means eventual acoustic roll-off is 4th order which
means the crossover is probably electrically 2nd order.

  Reply With Quote
Old 7th April 2004, 09:59 PM   #4
Wizard of Kelts
diyAudio Moderator Emeritus
Join Date: Sep 2001
Location: Connecticut, The Nutmeg State
Actually, there is some room for confusion here.

I have actually seen crossovers called 24 dB slope when they were actually just second order. Some people actually include the slopes of both drivers. So two drivers each having 12 dB slopes gets called a 24 dB crossover.

Normally, it doesn't work that way, but you do run into that terminology sometimes.
"A friend will help you move. A really good friend will help you move a body."
  Reply With Quote
Old 8th April 2004, 12:21 PM   #5
speaker is offline speaker  United States
diyAudio Member
speaker's Avatar
Join Date: Mar 2004
Location: USA
Originally posted by kelticwizard
Some people actually include the slopes of both drivers. So two drivers each having 12 dB slopes gets called a 24 dB crossover.

Sounds like some people need a slap upside da head.

Haven't heard that transmogrification before.

  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
LR 4th order vs LR 8th order crossover redliner Subwoofers 1 7th January 2009 11:32 PM
1st order Passive Line Level Crossover + 2nd order Highpass? alexclaber Multi-Way 11 4th January 2008 07:15 PM
first order crossover svokke Multi-Way 15 8th April 2005 08:48 PM
Acoustic Crossover kspv Multi-Way 3 8th July 2004 02:07 PM
Crossover - 1st Order GeniX Multi-Way 3 20th September 2002 02:39 PM

New To Site? Need Help?

All times are GMT. The time now is 05:35 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