There's been a lot of talk about this topic, and I figured I'd start a thread about ways to really tighten up the sound of a heavy band, whether you play rock or metal or what have you. I've been playing guitar for nearly a decade, so I'm mainly a guitar player, but I've started to gig with another band as a bass player and I'm getting into bass playing in a major way. One thing I noticed about this band was that we have a really seperated sound, but an extremely full one that doesn't leave any spectrum uncovered. I attribute a lot of this to the fact that I've played guitar in a band since I started playing, as well as the fact that I play with musicians who are willing to compromise so we all can be heard (we don't exactly compromise musically though, much to my dismay). First of all, my rig is NOT a high powered rig at all. 80W SWR Working Man's 10 and a Schecter Rob DeLeo bass. I don't think this could be concidered to be a loud rig by any standard- but this amp definitely suits my needs (for now- which is small gigs and loud practices) and covers all of the frequencies a good bass should. The first thing you need to concider is frequencies. This is way more important than volume, in my humble opinion. Even if you're playing in a HEAVY band, there are a few things that you need to know that the pro's who you all like know, the most important being: guitars are a midrange instrument. Your rhythm guitarist will sound awesome in the mix if he puts this mids on his amp slightly more than half way- the treble around that if not slightly higher, and the bass about a quarter of the way up. His gain should stay at 6 or 7- JUST where it starts to saturate (and he should turn his guitar's volume down a tad to stay crisp). On a Mesa Boogie, the master volume shouldn't be anywhere higher than 2-2.5. The guy from Creed, Godsmack, etc. do NOT turn higher than 4 or 5 even live- though they always say "Dual and Tripple Rectos CRANKED!" when asked how they get their tone. If they agree to turn up the mids and turn the gain and master to the saturation point, you'll want to increase your bass and high frequencies, and slightly scoop the bass. That said- most guitarists are dumbasses when compared to bass players- and I can say that because I *am* a guitar player who was an idiot for the first 3-4 years of playing. If you're playing in a band and you're teenagers, and your guitarist has a big marshall or mesa, he may INSIST that to get "his" tone, he needs to dime everything except the mids. He may not compromise. I think he'll turn exceptionally loud too in order to compromise for the lack of his fundamental frequencies. If that is the case, it's up to the BASS PLAYER to compensate. Now you guys are going to hate this but you're going to need to really ease off on the BASS frequencies. While we all want to "feel" the low end of a bass guitar, and in my opinion, that is the most 'pleasing' low end, there is just going to be TOO MUCH. In other words, you are going to have to eq your instrument the same way I recommended the guitarist do in the first section.