Whatever it takes. Many use an amp to shape their sound...
for example, if you play music that requires interactive sound reinforcement (feedback, distortion) just going direct isn't going to cut it. But, if you only need a clean, straight representation of the instrument, you are probably better off without an amp.
One thing i've always experienced about just using floor wedges, you turn them up loud enough to compete with a hitting drummer and the audience just gets mud from the stage which you have to overcome in the house. In ear monitors are probably the best way to go in that situation.
ymmv
for example, if you play music that requires interactive sound reinforcement (feedback, distortion) just going direct isn't going to cut it. But, if you only need a clean, straight representation of the instrument, you are probably better off without an amp.
One thing i've always experienced about just using floor wedges, you turn them up loud enough to compete with a hitting drummer and the audience just gets mud from the stage which you have to overcome in the house. In ear monitors are probably the best way to go in that situation.
ymmv
