[quote name='brensabre79' timestamp='1326461397' post='1497506']
As a former sound guy in venues doing 4 or 5 bands a night sometimes I can say that in most cases you'll get whatever sound the sound guy gives ya. The settings on your amp work with your cab in the room, but the PA is a different cab and so your settings will usually not be useful to FOH. Also, the sound guy should know the room and will EQ all the instruments to get the best out of the equipment and the room and make the show sound good. Your own personal bass sound is somewher on page 2 or 3 of priorities in this situation, however don't despair because the truth is that most of 'your' sound comes from how you play, not the amp, cab, bass etc. you use.
Thats why when I did the 6 band marathon nights, I'd set everything up first with the headline act eq wise then adjust volume levels for each act - the job of an in house PA in sound reinforcement, so any eq etc. really should be just to get rid of unwanted frequencies (room resonances, badly tuned drums etc.)
If you have your own engineer this is different, they will know your songs, and can add effects, level boosts eq etc. on a song by song basis (e.g. big vocal delay on the start of One Step Beyond, Slap bass - boost treble for lessons in love)
I do the PA for our covers band, vocals and sax only (occasionally the kick drum) go through it so the backline is naked. At each soundcheck the guitar keyboard and bass amps are all tweaked to suit the room (essentially doing he job of the sound man, minus the PA) and the PA is tweaked to ring out the frequencies which are most likely to feedback - usually the resonances of the room or harmonics therof!
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always curious about how much extraneous string noise/scratching cuts through in all this - like super new rounds for example...