crossover points - 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 16th December 2006, 06:21 PM   #1
ddoyle is offline ddoyle  United States
diyAudio Member
 
Join Date: Feb 2006
Location: oregon
Default crossover points

I have an old project I am starting on again. I bought parts on ebay from a company that has gone away(Zetag). I have the drivers and the parts for the crossovers, and specs and drawings for the cabnets. I am trying to find out what the crossover points are. Design is a tweeter, upper woofer and lower woofer. The 2 woofers are the same, they are aluminum/magnesium/copper cones. Tweeters are custom made by Vifa. The crossovers are 12db 2nd order, here is what I have:

tweeter, 8 ohms, .6 coil and a 4.7 cap, about 3000Hz ?
upper woofer, 6.5 ohms, .7 and .1 coils in series, 3.3 cap = ????Hz
lower woofer, 6.5 ohms, .7 and .7 coils in series, 2 3.5 caps parallel = ????Hz

Anyway to determine accurate crossover points from this info?
I do have all the speaker specs, if needed.
Thanks for looking.
Dan
  Reply With Quote
Old 16th December 2006, 09:33 PM   #2
Geoff H is offline Geoff H  Australia
diyAudio Member
 
Join Date: Oct 2006
Hi Dan,
The only way of pin pointing the crossover Fs would require the Z of the drivers at the design xo freq.

It would be better to assemble the lot, and do a sweep, measuring the near field response from each driver, or the signal fed to each driver.

Usually, designing a crossover starts with formulae / calculator, then trim values if required. So trying to reverse engineer just on component values is a bit "hit and miss"

Geoff
  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
Crossover points and music power distribution Prune Multi-Way 66 5th April 2005 11:02 AM
Bss Fds340 Crossover Points ! Javier Alvarez Solid State 0 2nd June 2004 02:59 PM
What are the common audible crossover points? dih1118 Multi-Way 2 22nd September 2003 09:12 PM
Do crossover points really mess things up? BAM Multi-Way 3 2nd June 2002 05:57 AM
crossover points ogp Multi-Way 1 17th January 2002 10:20 PM


New To Site? Need Help?

All times are GMT. The time now is 04:16 PM.


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