...and if your bass is hi-Z ("passive"), or lo-Z, the fuzz/OD/dist pedal will sound different. Your options are:
- works with your bass, put the pedal right after the bass
- you have many basses with different outputs, a buffer or another pedal in front of the crunch pedal may be in order
- buy all crunches that work with your basses
And do lots of testing to find your own. I tried several side by side. EBS was terrible (for me that is), most of the Darkglasses likewise (except Duality), Muff's popularity I didn't get at all, Boss pedals were a chore... The variety of fuzz/OD/dist pedals (and even rack units) is so wide, that I really recommend using your own bass when testing. I even have one board for hi-Z basses, and two boards with different fuzzes (and compressors) for lo-Z basses.
Believe me or not, you cannot mix and match every pedal with every bass.