Can i use 2 different amps for 4 door speakers?

alright so i have an mtx x702 AB amp in my truck right now running my door speakers. Im getting rid of my truck and getting an suv where i will be buying all new door speakers-2 sets of xtr 62's which are 6.5" components. My question is should i buy an orion xtr 2502 which gives 70 watts at 4 ohms to two channels to run one set of components and use the other amp which also supplies 70 watts at 4 ohms to run the other set of components , which would be 60 dollars cheaper or should i just buy at orion Xtr 2504 which supplies 50 watts to 4 channels at 4 ohms and just not use the other amp? i was just curious if i used to different amps if the music would sound messed up even though it the same power... and also the speakers are 60 watts rms so i would either be going over that 10 watts or underpowering them 10 watts.