Hello. You're most likely right about the power question, I actually change my opinion about it almost every time it comes to my mind. It's just hard to use common sense with this hobby sometimes. I'm very happy with my system and the thing that's really holding it back from being perfect is the room. But it's just that feeling you get (and I'm sure you know THAT feeling

) that maybe if I'd added this or that everything would sound even better. Like you said, there probably would be some improvement in sound if I added the amp, but no significant change. Maybe it's better for me also to just wait until I move into a bigger place and then take a full advantage of that upgrade.
Thanks again, it's actually rare but welcome, that someone's not pushing you to get something new on these forums.