2ohm vs 4ohm

[jr2320]

is there a big difference in 2 vs 4

Click to read more...

 

[greatwhite2006 10+ year member]

They are different impedances (resistances). At a lower impedance an amp produces more power, but not all amps can run stably at lower impedances. Some can run at 1 ohm all day, while others fry themselves at 2 ohms. The primary reason they make voice coils with different impedances is so you can match them up with different amplifiers easier.

Hopefully I did a decent job at explaining it. Some one else might be able to do a better job though.

 

[jr2320]

ok so if i got a 1250.1 and 2 10 l7 4 ohm it would be fine.

 

[greatwhite2006 10+ year member]

Just a note: Not all amplifiers are capable of producing more power at lower impedances ...
If there's a small or no difference in maximum continuous power output between 2 and 4 ohms, always choose 4 ohms. Your amplifier will run cooler and longer, plus you can use a smaller wire gauge ...

Thanks, I was not aware of that.

 

[greatwhite2006 10+ year member]

ok so if i got a 1250.1 and 2 10 l7 4 ohm it would be fine.

yes, that would be fine.

 

[skylineTT 10+ year member]

i run a 4ohm L7 off of a (soon to have) 1000.1. i have it wired according to kickers chart.