Remember, all those great bass sounds that you hear and strive to emulate have come to you from the studio, either live or recorded, via some high end equipment and in good acoustics. Getting your sound out in a live situation involves a whole load of compromises, not least the way you get your instrument to cut through the sounds put out by the other instruments. Drums and keys will provide the biggest challenges and you will find yourself using more mids than you might normally prefer.
Get a sound that works and above all enjoy your music. MBOL is seldom achieved on the stage.