sorry if its an irritating noobish question but i've just never had it explained to me. the reason i ask is that i'm buying a schecter c4 diamond series bass (http://www.guitarcenter.com/Schecter-C-4-4-String-Bass-Guitar-102451192-i1148005.gc?sort=2) and one of the lowest reviews for the guitar said that the action was too high. but then another guy said it was too low and had to raise it. so the second part of my question is how do you do that? any enlightenment would be appreciated, i just found this place and from the looks of it i will be visiting often. peace~!