Hi TB! I have played electric guitar for >20 years, but have only been playing bass guitar for a year or so. I would like to better understand the relative tonal options available via onboard preamps for passive pickups, a concept that is all but foreign to an electric guitar player! I understand the options concerning t/b vs. tmb, mid frequency switches, etc. So, my question is: How do you navigate the tonal differences between onboard preamp brands? There are so many pickup/electronics companies for bass that are foreign to me, like aguilar, sadowsky, bartolini, nordstrand, and so on... Though I understand there are tonal differences between models within a brand (e.g., vintage style vs. quarter pound vs. split coil SD pickups), I am more interested in the tonal differences, or voicing, between brands (their "signature sounds"). Would someone please point me in the right direction for a good descriptive comparison or comparison video? Oh, and as a bonus question, do those brands typically offer pickups of the same voicing as their preamps (i.e., how homogeneous are voicings by brand)? I've struggled to find one on my own. Thanks! And, happy holidays!