So I’ve been playing bass since 4 years ago and until today I’d not been interested in these topics. But now I want to buy something that make my sound tastier. But in my way to get some information about this topic I found a lot of options and some terms I’m not familiar with. So, making it simple, I want to know what does an amp, pre amp and DI are? What do they do to your sound? And in wich cases you will need them? ¡Thanks a lot for your help!.