Connect Firehawk to USB, make sure you have all drivers installed. I recommend downloading "Reaper" a free to try software that only costs 60$ if you decide you want to pay for it. There is no time limit on the free version and paying for it doesn't unlock anything, so it's an honor system (I paid for it after about a year of fiddling). Once you install Reaper, open it up, and make sure your FIrehawk is set as the audio interface. There are YouTube videos that explain how to do that.