Your HU is meant only for a 4ohm minimum load. However, Sonce the 2ohm speaker trend started about 3 years ago, I have yet to see any head units wth blown MOSFETS due to 2 ohm speakers. The truth about it is, your HU might run a little hotter. It might make 5% more power but at a much higher distortion rate. The power supply for IC/Mosfet in the head unit is small and allready pretty much maxed out with a 4ohm spaker load so it cannot produce any more power maximum power. It will produce full power earlier on the volume ****, but anything past there is just mega distortion.

So it won't do you any harm, but it's not doing you any good either.

Also the Infinity/JBL sensitivity ratigns are not 1W1M, they are 2.83V/1Meter. 2.83V is a unit used more for home theater as equates very closely to 1 watt of power on an 8ohm load. at a 2ohm load that's 4 watts of power.

Now 95dB 2.83Vat a 2ohm load is the same as 89Db 1Watt/1Meter... not very efficient.

All these companies are seriously just finding ways to polish their turds using creative/sneaky ways to inflate numbers while looking mathematically correct.

so remember as a guide.
if you see the rating based on 2.83V
2ohm speaker, subtract 6dB to get the 1watt/1meter number
4Ohm Speaker Subtract 3dB to get the 1watt/1meter number
8ohm speaker 2.83V is 1 watt...so no adjustment needed

 

dayum lol Sikk Nation droppin some wisdom hahaha. soo basically i should stick with 4 ohm, sounds like a plan. you think it would be possible to two sets of 2 ohm speakers and wire each set in series to make 2 4 ohm pairs and then install them in place of the stock speakers, or would that be better suited for an amp?

 

Could you actually hear the difference?. If you listen to MP3's all the time chances are you'll never notice the added distortion anyways.

I'm ahuge advocate of going to a few shops and buying with your ears.

And if you get a salesman say.."Well the infinities have a 95dB efficiency rating" you can now school them