Hello! The story: I use Fender Jazz Bass passive directly to M-audio Fast Track, which goes to PC or MacBook with Reaper/Logic, but I don't like the quality of the sound, it is kinda plastic and cheap. Even with VST plugins. I see many youtubers get really clean and rich sound, using preamps and DI boxes (I don't speak about those guys using big amps and mics), and I'd like to make my sound better. The question: what should I get to be able to record at home with good quality? A DI box, or a preamp such as tech 21 sansamp bass driver di programmable, or shiftline olympic mk2/mk3? And 21 sansamp can be used as DI box, so is it best from both worlds? Also I have a fuzz pedal bigmuff deluxe, which also can be used as DI box, can it help me improve my overall sound quality when recording? And yes, I don't use old strings. Hope you can give me good advice, I'm quite new to this and really need help. Thanks!