A:Answer Hello, Ion Audio Technical Support here, happy to help!
This product would work perfectly fine for connecting an electronic drum kit. Most all e-drum kits will output to line level. They likely have two output channels, Left and Right. You will want to either connect the output on the E-drum labeled mono (either master L or R) to the Line input of the Total PA. Or, you could use a 1/4" TRS L + R to 1/8" TRS Y-cable, and take both master outputs, and plug them into the Total PA's aux input.
If you have any questions, please reach out to us at www.ionaudio.com/support and we would be happy to help directly!