Amp impedence

So I just got myself a 4 channel amp and i'm planning on using it to wire my 4 speakers i have in my civic. my question is if i have a pair of 2 ohm jbl speakers and a pair of 4 ohm rockfords what impedence will the amp end up seeing? does it really matter if i mix them or not?

What amp, most good 4 channel amps have 2 power supplies while cheaper ones only have one. Depending on the amp it shoudlnt be a problem. Also make sure your 2 ohm speakers can handle the higher power since the impendance will be lower.

you have 4 speakers and 4 channels ...... each channel will see the load of the speaker attched to it.