Unplug your mixer and amp from any outlet or power source. Make sure the mixer and amp are both turned off.
Insert either end of a guitar cable into the “Input” port of your speaker amp, located near the top of the amp by the "ON/OFF" switch.
Insert the other end of the guitar cable into the “Main Out” port on your mixer, located near the top of the mixer.
Plug the two-prong end of the power adapter for the mixer into an outlet and connect the other end of the adapter to the back input on the mixer. The mixer should turn on.
Plug in the power supply for the amp into an outlet and flip the “ON/OFF” switch to the on position. Your mixer and amp will be successfully connected.