For basses with passive pickups and one tone control (as opposed to separate bass and treble) what should the setting be for no tonal attenuation? For example, if there was a separate bass and treble control on a passive pick-up instrument, turning the treble to zero would result in the maximum attenuation of the treble frequency (it seems to be around a 10db change at 5khz) and turning it to maximum would result in no attenuation at all. Likewise, turning the bass to zero would result in the attenuation of the bass frequency (it seems to be around a 10db change at 50 Hz) and turning it to maximum would result in no attenuation at all. With a single tone control, turning it all the way to treble should cut the bass frequencies and leave the treble unaffected. Conversely, turning it all the way to bass should cut the treble frequencies and leave the bass unaffected. Therefore if I want the pure sound of my pickups, should I leave the tone control on the half way point between 0 and max? (And the volume on max)?