Many drummers are fascinated by the idea of experimenting with the sound that two modules may produce when mixed. To make the connection smooth and hassle-free, try the following: Make sure the two models are compatible, at least to a certain extent. Try the plugging-in approach first. Use the auxiliary cable of one module and plug it in the auxiliary headphone output of the other drum module. Do not forget to set patch levels to a lower volume when inserting the headphone jack into the mixing jack. Another way to go about this is to use a MIDI cable to link one moduleu2019s MIDI out with the other moduleu2019s MIDI in. This method is helpful in situations where your first module does not sound as good as the other one, and you want to be able to borrow the sound of the second unit while hitting the pads of the first module. If none of the said methods worked, you might want to see what other ways to expand your electronic drumkit exist.