ohms

Home / the12volt's Install Bay / Car Audio / ohms (

Topic Closed)

Welcome Guest :)

Members

Search

Register

Login

< Prev Topic Next Topic >

davywavy4186

Member - Posts: 23

Joined: May 23, 2003

Location: United States

Posted: May 27, 2003 at 5:28 PM / IP Logged

wuts up i was wondering how ohms work and stuff like that like when a amp says so many wats and this ohms and this at this and the subs for that matter too thanx

also wut is rca?

Back to Top

xetmes

Silver - Posts: 586

Joined: May 18, 2003

Posted: May 27, 2003 at 7:55 PM / IP Logged

the "ohm" is the load DC resistance, if you look up the maximum power transfer theorm you will read that maximum power tranfer occurs when the source has the same internal resistance (thevinin) as of the load. Lower the resistance tho will cause more current draw (P=I^2 * R), and therefore more heat. That is why it is important. Note: i call it the DC resistance because impedence in a coil changes resulting from the change in frequency.

RCA-that company ohms - Last Post -- posted image. , refering to the signal wires most likely

Back to Top

wvsquirrel

Gold - Posts: 1,237

This member has made a donation to the12volt.com. Click here for more info.

Joined: July 27, 2002

Location: Florida, United States

Posted: May 27, 2003 at 10:52 PM / IP Logged

Technical answer is ohms law

Laymens terms, ohms is the measure of resistance.

Less Ohms = Less Resistance = More Power and better efficiency

Multiple subwoofers can be wired to achieve a different "total" ohm load than just one of the subs. For example, if you have one 4ohm SVC (single voice coil) sub then you can only wire it to an amplifier at a 4ohm "total" load. But, if have two 4ohm SVC subs, then you can wire each sub on it's own channel at a 4ohm "total" load per sub, or you can combine the wiring for the subs and produce either a 2ohm or 8ohm "total" load. Here's some links to online wiring wizards that may help show the differences...

JL Audio Wiring Wizard and Rockford Fosgate Wiring Wizard

An RCA cable is also refered to as a "patch cable". Here's a picture of one...

Squirrel

"No more Cpt. Kirk chit chat"

If its too loud, then you're too old

Donate to the12volt.com

Back to Top

Sorry, you can NOT post a reply.
This topic is closed.

Printable version

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot delete your posts in this forum
You cannot edit your posts in this forum
You cannot create polls in this forum
You cannot vote in polls in this forum

Search the12volt.com

Follow the12volt.com

Disclaimer: *All information on this site ( the12volt.com ) is provided "as is" without any warranty of any kind, either expressed or implied, including but not limited to fitness for a particular use. Any user assumes the entire risk as to the accuracy and use of this information. Please verify all wire colors and diagrams before applying any information.

ohms

Sorry, you can NOT post a reply.This topic is closed.

Sorry, you can NOT post a reply.
This topic is closed.