mixed impedance

I have an Alpine MRP-F300 four channel, specs say it can do 50w at 4 ohms and 75w at 2 ohms. I'm running my active two way setup with this amp. My tweeters are 4 ohm and mid bass are 2 ohm (2.2 to be exact). My question is: Since the amp is stable at two and four ohms, can I use two of the...