Originally Posted by mikegett
The ohm rating is the resistance the amplifier sees from the speaker. The lower the number the higher the resistance. A higher resistance of 2 ohms will allow the amplifier to draw more wattage. You can place a lower resistance speaker rated for 4 ohms onto the JbL amp, but it will ony draw half the wattage it previously did. Since aftermarket speakers are already rated for higher wattage recommendations, it will probably sound flat. Your best bet would be to add a seperate amp and aftermarket speakers.
the lower the number the lower resistance. the lower the ohm the more power you get from amp.
some amps are not stable below 2 ohms, but some will go down to 1 ohm
depending on how you connect your speakers, you could make the amp "see" 1,2,4,8 ohms, depending on what are you trying to achieve.
I have a 15 in sub with dual coils, connected so I get 4ohms, that way my amp gives me 800w rms matchin the sub capacity. thats why toucant just go crazy and conenct all speakes to one amp if you don't know what you are doing you could burn the amp and you system is not gonna sound good.
recommend you get aftermarket amp and speaker....
make sure that you speakers mact the amp RMS rating very close. @ the ohm s that you speaker will be.
do some reasearch online and you wil find out how to connect speaker in many different ways. so your amp produce what you need.