The best money you will ever spend is on room treatments. If bass is a concern, invest in some quality bass traps. The best speakers in the world can sound just okay in a bad room.
How much budget for bass?
I think I may have been thinking about this all wrong. If Bass is the foundation for music how much of your speaker budget should be applied toward a sub? I was thinking the sub was just to enhance the mains but maybe it is the other way around? never heard a sub properly setup for music so what are your thoughts? thanks,Scott