i was reading a bass supplement that came with a guitar magazine and it said every bassist should be using a compressor pedal,
1) would you agree with that?
2) what does it actually achieve?
1) No. One shouldn't make absolute rules governing exactly how players achieve the sound they prefer.
2) The main function is to reduce a signal's dynamic range. But the good news is that you can use it to do much more.
For example, I run a Lightning Boy Audio Op-2 tube compressor always on in my direct pedalboard rig. Set transparently, it does help keep my playing a little bit forward in the mix. *But* I use it primarily to help mimic the tone of a tube amp with mild natural compression, but more so for the option to push into some harmonic content. Since I am usually direct and rarely need to deploy my hybrid tube head, this unit gives me some choices from clean and modern to a "warmer" feel.
That said, certain playing styles do tend to call for more compression, such as slap, which I can't do anyway
My best advice is to listen to a lot of A/B bass compression demos and see if these begin to unlock any potential sounds you really like.
Regards,
Ethan