Alesis MK2 Owner Reference Manual page 19

To connect wires to the terminals if you are not using a banana plug:
1. Strip about 1/2" (15 mm) of insulation from the ends of each wire. If
the wire is stranded, twist the strands together at the end.
2. Turn the red and black terminal caps counter-clockwise until they
reach their limit. As you do, the hole through the terminal post will be
exposed.
3. Insert the wires into the holes, observing proper polarity.
4. Tighten the terminal caps so that they hold the wire firmly.
Make sure no insulation is caught inside the terminal, to avoid a loose
connection.
Monitor One Mk2 Reference Manual
chapter 2 • installation
15