RMS of tweeter from a component set

I have 2 sets of component Polk Audio Momo 6.5" components, rated at 150W RMS (each). I used to power them with a 4 channel x 150W RMS amp using the Polk passive crossover.

I now have an active crossover and want to power the tweeters separately from the woofer. I have a spare amp that is only 4 channels x 50W RMS. Would this amp be sufficient or would the tweeters be underpowered. Do I need another 4 channel x 150 W RMS amplifier to power the tweeters?

you will just have to try it out and see, no way to know by just the specs. I would guess you will be alright though