Everyone is talking about running passive only for a vintage tone. But he said he like Marcus Miller tone in particular. You don’t want to run passive. Marcus sadowsky bass that made him Marcus Miller had a passive active switch. Which is why his fender signature has it. Marcus always and i mean always runs it on active. I have professional musicians in the family. I’m a bassist. I’ve met Marcus. I’ve met his Chicago technician. The best preamp to get that Marcus Miller tone is a special order from bartolini. It’s the TCT-4.5TAPJ. It’s active passive vol blend set up. It’s a custom request. Hit up bartolini and they will tell you the same thing. It’ll be worth the wait if tone is what you are seeking.