Help with reading frequency/impedance chart - 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 17th July 2009, 11:34 PM   #1
diyAudio Member
 
Join Date: May 2009
Default Help with reading frequency/impedance chart

Hi all,

I am planning on using some Vifa P21WO-20-08 woofers in a future design but the frequency/impedance chart on the spec sheet (see link below) is confusing me. The SPL scale on the left that I am used to seeing with 0 in the middle and the +/- range usually going up and down is all out of whack. I'm not sure how to read it.


http://www.madisound.com/catalog/PDF/p21wo20-08.pdf

Also, I would like to use this the Dayton RS52AN dome midrange with this woofer and was think about crossing over at 700Hz. Would that be too high for this woofer?

As always your advice and opinions are appreciated.
  Reply With Quote
Old 21st July 2009, 08:06 AM   #2
diyAudio Member
 
Inductor's Avatar
 
Join Date: Feb 2006
Location: Cascais
Default Re: Help with reading frequency/impedance chart

Quote:
Originally posted by retroman
...the +/- range usually going up and down is all out of whack. I'm not sure how to read it.
If you read in the bottom of the page 0=60dB, so you start with 60dB and go from there (add ten each time). The woofer works good for that frequency. It all depends of the x. order you are going to use. 700 is not a nice xover frequency though. Try to cross at arround 200/300 or 2K/3KHz. Not with a dome mid, if you gonna use one. It should work.
__________________
NEXT-proaudio Portugal
  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
Hiquphon OW4 frequency and impedance response data luvdunhill Multi-Way 3 26th October 2014 09:32 AM
impedance and frequency response relation MisterTwister Multi-Way 3 16th July 2009 03:37 AM
Impedance Chart? angsuman Multi-Way 8 23rd May 2006 12:03 AM
Impedance Curve vs. Frequency diagram-Ascent i? Dominick22 Planars & Exotics 1 23rd November 2005 08:24 PM
Impedance v.s. frequency maylar Multi-Way 1 5th January 2005 02:59 PM


New To Site? Need Help?

All times are GMT. The time now is 06:48 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