concert sound 10 ohm speakers

[kneeshurt]

just started replacing my speakers in concert sound system. doors are done with 4 ohm. i did them before reading sticky. is it saying i can have one pair of 4 ohm or two pair before having to rewire thanks.

 

[VMineo]

If the factory speakers are 10 ohms and you put a 4 ohm speaker in on the factory radio,you WILL blow it