This Christmas, I'm considering purchasing a Behringer Xenyx 802 mixer (http://www.amazon.com/Behringer-802-Premium-8-Input-Preamps/dp/B000J5XS3C/ref=sr_1_1?s=musical-instruments&ie=UTF8&qid=1448127692&sr=1-1&keywords=mixer) and an AudioTechnica AT2020 XLR microphone. I already know how to set...