2ohm 6x9s - Headunit Says Only 4 Or 8 Ohms

[MrStabby]

I just bought some JBL 6x9s. The speaker box said 4ohm in one place and 2ohm in another, so i checked with the salesman and he said they're fine to use with a regular head unit. I've now opened the box and the speakers are definately 2ohm. The headunit's instructions says you should hook up 4 or 8 ohm speakers. So, do i need to return the speakers? What would be the consequence of running this combo?

[Chris Rogers]

how loud do you intend to play it?

stupidly = return

sedately = fit and use.

[VB-]

normal speakers in 2 ohm are pretty rare, does it say 2 ohm on the bottom of the speaker? do you have a DMM?

[Lil_Bobby_260]

Youve bought a set of JBL GTO937s or something i take it?

Simple answer - yes you can but ur head unit will just run hotter, tho still be well within safe temperature.

You will find that o the box it has a picture that looks like 4OHM with a tick.

Long answer -

Yes you can run these off a 4 OHM head unit. You will find that (if you have a multimeter) your speakers actually run about 2.5OHM. If you were to measure the ohmage of thecable from the h.u. to where the speaker is you would find it has resistance as well.

I run GTO637s (6") I measured it in my car (the mazda 6) and found that if you measure the ohmage on the pos and neg wire to the speaker with the speaker hooked up, it actually runs about 3.9 in my car, and most others. A 4 ohm speaker gives you about 6-7 ohm once you take the resistance of the speaker wire into account.

This is handy cos the lower resistance pulls more power out of your head unit. Makes it run a lil warmer, but nothing crazy.