One of the things missing in Spark is a direct input and output to your recorder,amp in case you want to input Spark drums to a analog or perhaps a optical input recorder, a amp or even to your computer. This would open up even more options for Spark to be used. Think out of the box and make it happen. I guess you would have to make a entirely different Spark to get it to work as a stand alone unit. This is a good new years resolution.