Rovner Versa V-3RL Bass Clarinet

I find this to be one of the all time best ligatures for bass clarinet. It offers a really wide spectrum of sound and attack possibilities. The build quality is excellent, and it's made to be easy to put on place together with the reed swiftly, unlike other ligatures that make it more difficult to change reed in the middle of a performance. I can adjust the position of the reed or even change it if necessary, which makes it very practical.

The interchangeable metal plates give you even more colours and can serve to different purposes such as playing in an orchestra, solo or chamber music.
I used to experiment as well with the two "flaps", either up or down to look for slightly different response.

Wrapping up, a great value ligature I would recommend to all Bass Clarinet players despite their level.