Adding resistor to speaker to match impedance? - Telecaster Guitar Forum
The Number 1 Fender Telecaster Guitar authority in the world.
   

Go Back   Telecaster Guitar Forum > Amplifier Discussion Forums > Amp Central Station
Forgot Username/Password? Join Us!
Notices

Amp Central Station Amps, tubes, speakers & everything AMP related.


Wilde Pickups by Bill & Becky Lawrence WD Music Products Amplified Parts Mod Kits DIY Amps, Mods, Pedals dallenpickups.com Warmoth.com seymourduncan.com


Forum Jump


Reply
 
Thread Tools
Old May 2nd, 2004, 02:29 PM   #1 (permalink)
R.I.P.
Poster Extraordinaire
 
trag-o-caster's Avatar
 
Join Date: Mar 2003
Location: Flushing, Michigan
Age: 53
Posts: 5,119
Adding resistor to speaker to match impedance?

I just read somewhere that you can take an 8 ohm, 10 watt resistor, solder each end to the speaker terminals, and that would make a 4 ohm load out of an 8 ohm speaker. Is this true??? And if so.......

.... say you wanted to use a 16 ohm speaker with an 8 ohm amp. What to do then? A 16 ohm, 10 watt resistor?

I found the info last night. Like a fool, I didn't save it. Today I can't find it NOWHERE. Thanks in advance!

__________________
Timothy Jon Lamb
trag-o-caster is offline   Reply With Quote

Old May 2nd, 2004, 04:14 PM   #2 (permalink)

Formerly known as Eryque
Doctor of Teleocity
 
KokoTele's Avatar
 
Join Date: Mar 2003
Location: albany, ny [not chicago]
Age: 39
Posts: 12,642
Re: Adding resistor to speaker to match impedance?

Well, there's a couple of problems.

First, while you technically would be making the setup have the right impedence, you'll be splitting the power delivered between the speaker and resistor. So, your speaker will only see half of the power and therefor have a lower output. And, unless your amp is 20W or less, a 10W resitor ain't gonna cut it.

Also, resistors are rated in DC resistance, not AC impedence. So your 8 Ohm resistor will have a different impedence.

If it's a Fender amp, you can use a speaker that's either twice or half the output of the amp and the impedence mismatch won't cause you problems.

Best to get the right speaker for the job.



Quote:
Originally Posted by trag-o-caster
I just read somewhere that you can take an 8 ohm, 10 watt resistor, solder each end to the speaker terminals, and that would make a 4 ohm load out of an 8 ohm speaker. Is this true??? And if so.......

.... say you wanted to use a 16 ohm speaker with an 8 ohm amp. What to do then? A 16 ohm, 10 watt resistor?

I found the info last night. Like a fool, I didn't save it. Today I can't find it NOWHERE. Thanks in advance!
KokoTele is offline   Reply With Quote

Reply

Bookmarks

Thread Tools

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

Forum Jump

/td>

» Random Photo for Guests
lefty tele replica mod
Untitled Document



 


Powered by vBadvanced CMPS v3.2.2



IMPORTANT:Treat everyone here with respect, no matter how difficult! No sex, drug, political, religion or hate discussion permitted here.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0 RC 2
© TDPRI.COM 1999 - 2014 All rights reserved.