Vic, maybe. But my mv5 is ash/maple as is the Fender and I leave the pre flat...same strings too
I have owned identical twin basses that sounded surprisingly different, even when freshly strung with identical string sets. "Identical twin" means same manufacturer, same model, same woods, same components. (OK, the paint colors were different, but are we really gonna go there?)
Logic says that the tonal differences are due to the variable nature of wood. I largely disagree that each wood species has a specific tone. Based on my experience, each species has its own RANGE of tones. Point being, it's difficult if not impossible to compare two basses and declare that the tonal difference between them must be because of Reason X.
What Vic has been saying applies regardless. I believe you are comparing an active Sadowsky with a passive Fender. As he has said, there are MANY differences, even if woods are the same. Just one example: an onboard preamp has an effect on tone even when it's set "flat".