The Speed switches change Boom’s rhythmic relationship with the current tempo set in Pro Tools.
The switch on the left has three modes. In X1 mode, Boom’s sequencer plays at the same tempo as the master tempo in Pro Tools. In X2 mode, Boom plays twice as fast. In X1/2 mode, Boom plays half as fast.
The switch on the right enables Triplet mode. In Triplet mode, Boom plays only the first 12 steps in the sequence. The last 4 steps turn grey, indicating that they will not be played.
The 12 steps play in the same amount of time Boom would normally play all 16, for the creation of triplet grooves.
Trying different combinations of Speed switch settings on-the-fly can create interesting rhythmic variations.