I cannot find much about bridge buzz but it can definitely be a thing.
I got my first bass 4 days ago (therefore, I’m almost as far from being an expert as possible) and asked for setup. Everything feels fine about it but initially I had buzz coming from my bridge (not my frets) when plucking the E string even when I tried to be soft.
In an attempt to fix it, I loosened the string until I could lift it, wiggled it and the saddle around, then tuned it again and now the buzz seems to be gone for the most part. I still get a tiny bit of it when plucking very close to the bridge, but it’s WAY better now.
My non-expert theory was and still is that the string somehow wasn’t seated firmly enough. (I checked the spring and everything, only pushing the string hard onto the saddle seemed to reduce the buzz before I “fixed” it.)
(Also, I didn’t get a wrench for adjusting bridge height, so that’s a bit sad. SBMM SUBs don’t seem to come with tools.)
Bridge buzz seems to be much harder to find info on than fret buzz. Can you guys share your knowledge about it perhaps?