Ive been asked countless times how many ohms I'm running at and honestly I don't know what ohms means so I just show people.

This is what I have (not sure on the + - but to lazy to go check)


What is it considered THANKS

 

ohms is an electrical measurement of resistance. the higher the ohms the more resistance.

probably running 8ohms. depends on your subs, but if they are 4ohms, in a series bridge with 2 subs. you have 8 ohms.... check the back of your subs and see the ohm rating.

please correct if im wrong.

 

is more ohms better . . . their w6vs 12in

 

less ohms=less resistance=more power rms

 

will it be better to connect them the way they are supposed to be. . . so the only way to know how many ohms im running at it will be to take out the sub

 

JL website says dual 4 ohms on the subs

 

i know just enough to get in trouble. the girlfriend sold car audio for years, and she knows a good bit. she gets home around 5:30 and if she can help i'll relay the info.

but until then, heres a good link for you to look over, or search this site.

learn here <--

 

so dual voice coils? total of 4 connections on each sub?

 

yes I guess their wired like that from factory . . . thanks

 

As mentioned above ohms is the electrical measurement for impedance / resistance.

When adding ohms in series (+to-) its just strait addition (r1+r2+r3=Rtotal). 4ohms+4ohms=8ohms

However, when adding resistances in parallel (+to+ and -to-) you must add them reciprocally (1/r1+1/r2+1/r3=1/Rtotal) 1/4ohms+1/4ohms= 1/2ohms = 2ohms

A couple formulas that are good to know are:

P=IxE

P - Power in Watts
I - Current in amps
E- Voltage in volts

And:

E=RxI

E - Voltage in volts
R - resistance in ohms
I - Current in amps

From any of these formulas (ohms and watts law) you can find your wattage voltage resistance or current.

Less resistance does mean more power, but that isn't always good. More power also means more heat generated, which can damage amplifiers that aren't rated for such abuse.

If you look at the specs on your amp it will say (for example) 500watts @ 2ohms. What this means is 2 4ohm subwoofers can safely operate at 2ohms in parallel and produce up to 500w.

Anyways, hope that helped,
IanH

 

Glad someone stepped up Ian...thanks for the better explanation

 

check this link

http://www.rockfordfosgate.com/rftech/woofer_wizard.asp

 

Taken from the crutchfield website...

'There are many ways to wire subwoofers and amplifiers. The ideal is to match subs, amps, and their relative impedances to maximize their power capabilities. While not totally inclusive, the following diagrams should be helpful in determining which wiring option will work best for you'

http://www.crutchfield.com/S-4CHkAym...rs_wiring.html

 

Thanks everyone

 

and if everyone else's info wasn't enough here's my .02 http://www.the12volt.com/Default.asp?