Hello, I am using a iMac vs. High Sierra 10.13.6 , I am using Studio One 4.6.2 and AUDIOBOX USB . When plugging in a guitar signal in either HiZ or LoZ input I hear white noise and distortion when turning the source dial to playback. When dialed to Input it is clear and without distortion. I've installed the Universal Control and installed. I have changed sample rates, guitars, direct boxes, and the usb cable with no affect. Is there a fix?