Novation DrumStation

If you're wondering why your DrumStation is being steadfastly silent, and you've set all its instruments to output on the same channel, here's why you can't hear anything: it appears to mix together the sum of all the instruments, meaning the more instruments you have set to any given output, the quieter each one will be. If you set every single instrument to output on the same channel, each one is so quiet that it's inaudible above the background noise.

So if you'd like to record each instrument one at a time, I'd advise having all the instruments you're not recording set to different outputs, even when they're not being played, in order to get the best signal-to-noise ratio.