​The Whirlwind IsoPod & PodDI allow you to plug consumer audio gear into one channel of a mixer. They sum the unbalanced audio from stereo to mono, and send out a balanced signal via XLR. 

If you want to keep your signal in stereo, be sure to check out the Whirlwind PCDI & PSUSB video here: https://www.youtube.com/watch?v=dJMMudeVwtg

This video will show you how to properly hook unbalanced stereo signals into a mixing console. The PCUSB is a simple Digital Audio Converter for plugging a computer directly into a mixer.
​Shoutout to Primo Sol for supplying the backing track!

​The Whirlwind Little IMP is an inline impedance matching transformer used for plugging low impedance microphones with an XLR cable into high impedance 1/4" mic jacks. It can even be used to plug a microphone into a guitar amplifier, although this is not recommended if you're looking for quality sound.