need help with this crossover design - 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 14th January 2005, 02:10 AM   #1
Xristo is offline Xristo  Australia
diyAudio Member
 
Join Date: Jun 2004
Location: Melbourne
Default need help with this crossover design

Hi guys,
Im currently building a pair of bookshelf 2ways using vifa p17 6.5 mid woofers matched with the vifa d25ag tweeter. The design im using is from John Krutke's website, however it seems he has taken off this project from his website.

Needless to say i have not a clue in regards to crossovers, so i took the design to a shop in melbourne that sells resistors and caps ect and showed the guy the schematics, so that he is able to help me choose the parts needed.When i showed him he looked at me weird and told me there is not enough information given in the schematics in order to choose the parts. I have attached the image of the schematics and i would be greatful if someone could tell me what other figures are needed in order for me to buy the right components. These speaker will be run off a 2 channel rotel amp with approx 20 rms going to each one.


Click the image to open in full size.
  Reply With Quote
Old 14th January 2005, 02:29 AM   #2
simon5 is offline simon5  Canada
diyAudio Member
 
Join Date: Nov 2004
Location: Québec, Québec
If you never want to use more than 20W RMS, you will need parts with a voltage rating of at least 25V.

Then try to get best precision in % if you can, if it's not too expensive.

For the capacitors, you'll want polyesther or something like that.

The inductors might be harder to find.

I don't know why he told you that you need more information, it's all there!

Good luck.
__________________
DIYaudio for President !
  Reply With Quote
Old 14th January 2005, 05:39 AM   #3
madinoz is offline madinoz  Australia
diyAudio Member
 
Join Date: Mar 2004
Location: oz
Having used both of these drivers together in a design a few years ago I can only offer the advise that you purchase a few different inductor values to experiment with (the inductor to the woofer that is). Just about every crossover I have seen has a fairly high value (2.2mh in this case) for the woofer's inductor.
You will do yourself a massive favour if you bought a few other values such as 1.8mh, 1.2mh. Even though you won't end up using them in this project, there will certainly be other opportunities to use them when you've caught the DIY bug.
As for the shop assitant's advise about the crossover schematic being incomplete.
I can only suggest that his/her knowledge is incomplete!!!!!
  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
How do you design a crossover?????? legendaryfrog Multi-Way 25 19th November 2006 09:23 PM
I need to design a crossover. j.burtt Multi-Way 3 11th May 2006 09:10 AM
crossover design keroo Multi-Way 1 1st May 2005 12:03 AM
crossover design Dave Jones Multi-Way 10 21st September 2003 07:38 PM
Crossover design Bose(o) Multi-Way 23 11th February 2002 07:22 AM


New To Site? Need Help?

All times are GMT. The time now is 09:39 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