I have been thinking about buying a new mic lately as i haven't exactly gotten great tones from my current ones, a sm57 and an at3035. sometimes they are okay, but i keep hearing great things about the r-121. my question is, would this mic make a major difference in my sound even though i am using an mbox(which i love, but it may not necessarily have the best preamps). What's more important, the mic or the pre amps? if i got the royer, would i only notice the difference if a had like a $2,000 mic pre? thanx for the help.