Jump to content
Sign in to follow this  
alan412

Is this normal?

Recommended Posts

i have one dual voice coil 4 ohm sub. i wired it to 2 ohm. i checked the resistance with a DMM and the read out i got was 2.5 ohms. is this normal?

also when setting my gain should i use the formula 500 watts x 2 ohm = sqrt (1000) = 31.62

or should i do 500 watts x 2.5 ohm???

Share this post


Link to post
Share on other sites

What does each set of coils measure out to?

Share this post


Link to post
Share on other sites

retest.

First, touch probes together and see what they read then subtract that from what the coils read.

Share this post


Link to post
Share on other sites

retest.

First, touch probes together and see what they read then subtract that from what the coils read.

I retested each coil this morning. i touched the probes together and i got .1ohm. one read 4.1 ohm which is perfect and the other was reading 4.2, i guess thats ok?

Share this post


Link to post
Share on other sites

odd...

I've never seen actual resistance measure nominal resistance.

But even at that reading, wired in parallel should be 2.0-2.1, not 2.5.

What size wire u usin?

Try a minimum of 10 awg wire and try to keep the run no longer than 6ft and see if that helps.

Share this post


Link to post
Share on other sites

somehow my friends 2 single 4 ohm subs measured out to 6.3 ohms lol

Share this post


Link to post
Share on other sites

that's only normal if they are both wired in series

Share this post


Link to post
Share on other sites

odd...

I've never seen actual resistance measure nominal resistance.

But even at that reading, wired in parallel should be 2.0-2.1, not 2.5.

What size wire u usin?

Try a minimum of 10 awg wire and try to keep the run no longer than 6ft and see if that helps.

I'm using 12 gauge wire. ii just retested with the coils wired in parallel and im getting exactly 2.0ohm. i dont know why it was reading 2.5 before but things seem fine now.

thanks for the help

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

×