I have an individual style bass, It has god a hofner violin shape body, but it is full solid! It also has got 2 baby humbuckers and same electric controlls/switches as on the hofner beatle bass. I mean. -Rhythm on/off - Bass on/off -Treble on/off + 2 volume There are rounds right now on the bass. I mainly play beatles of course. My question is how to get the warmest and deepest sound of it? What switch settings do i need to use? Because i really dont understand these switches. Thank you.