Why is my bass bridge buzzing?
Action height is a very common cause of fret buzz. We all want to make sure we're not putting too much pressure on the strings, as we might get fatigued faster. However, the lower the action is, the more susceptible a guitar is to fret buzzing. ... You can change the string's height by adjusting the bridge saddle.
Why is my bridge buzzing?
Often times your problematic string may be too low. Raise the bridge saddle to match the radius and the buzz can buzz off. ... Sometimes it's done by raising the bridge on one side or another and then "slotting" the saddles correctly.