"ported box cant hit lows", "ported box sounds sh*tty", might need to change back to sealed". Seems like you are going that way. As said before, raise your low pass filter. 30 is completely wrong. Plus that put on by young jeezy doesnt even go that low, you are most likely missing all the high notes with the low pass filter on 30 hz. Fix that up ASAP.
30 hz means anything 30hz and above will be cut off so if you are missing bass notes, thats the main culprit.