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

Ohm's on amp?
Ohm's on amp?
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 6th January 2003, 04:39 PM   #1
Scribble is offline Scribble  Australia
diyAudio Member
Join Date: Dec 2002
Location: Western Australia
Send a message via MSN to Scribble
Question Ohm's on amp?

Ok another question

While i was viewingthis project i noticed that the tweeter was 6ohm and the woofer/mid was 8ohm. What would this equal to in total for the amp? would the spakers be 8ohm or 6 ohm?

  Reply With Quote
Old 6th January 2003, 04:46 PM   #2
JBL is offline JBL  Canada
diyAudio Member
JBL's Avatar
Join Date: Aug 2001
Location: Canada, N.-B.
Send a message via ICQ to JBL
A combination of the two.

Low frequency will see 8 ohm but high frequency will see 6 ohm. Generally all amp will be able to drive 6 ohm to full power.
Jonathan Blanchard (J.Bl.)
---Nothing is impossible---
  Reply With Quote
Old 6th January 2003, 07:52 PM   #3
jan.didden is offline jan.didden  Europe
diyAudio Member
jan.didden's Avatar
Join Date: May 2002
Location: The great city of Turnhout, BE
Default Ohms?


If you look at the xover, which is a series one, you will note that at low freq, the coil will have a low impedance and shunt the tweeter, so what the amp sees is the woofer + a small impedance of the coil//tweeter. At high freq, the cap is shorting, so the amp sees the tweeter + the small imp of the cap//woofer.
You really would need to do a simulation of this network or measure it to see the impedance change with freq. I didn't even mention that at resonance, weird things may happen.

Bottom line: probably somewhere between 6 and 8 Ohms, with some resonances to 20 or more Ohms. There may or may not be some freq where the imp drops below 4 Ohms. Also depends on the enclosure. No simple answer, I'm afraid. But you amp should be OK with this speaker.

Jan Didden
  Reply With Quote


Ohm's on amp?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

Forum Jump

New To Site? Need Help?

All times are GMT. The time now is 05:10 AM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 17.65%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio