This tool controls input and output audio drivers, enabling easy access to all inputs and outputs of multiple sound cards installed on your computer. Ideal for checking all outputs.

This tool is especially useful when you want to check all your outputs. You can run the internal audio file and easily check the correct left and right channels for each of your soundcards. If you've got more than two soundcards installed on your computer, this tool is a must-have.
The best part about this tool is that it's available as freeware, or you can choose to donate just one dollar to support the developers. With all its amazing features and usability, the Input and Output Audio Driver Controller is definitely a software that is worth a try.
Version Freeware: Input and Output Audio Driver for all Windows OS