you are such a noob...how could someone else define what is loud enough for you? Do you even know what 120s sound like? That setup should be well into the 130s and that is a huge difference from 120s.
But 2.2 cubes should work great for 2 of them...I would do it
2.2 cube's will do fine for those woofer's. you will be in the high 120's to the low 130's. well unless your box isnt built properly then it wont perform the way it really should.