I own the Presonus AudioBox 22VSL and Studio One 3, they are connected to my mac. everything is download and connected properly, Audio MIDI is setup correct and my output is set to my Audiobox 22vsl. when i open my AudioBox application i make sure it is turned before i open up Studio One 3 and i make sure my mixer is turned all the way to VSL instead of input. unfortunate I still can not hear through my headphones when my audio box 22vsl mixer is turned to vsl. When i open up Studio One 3 i make sure my input and output is set to AudioBox 22vsl, i can recored and i even see sound going through my DAW meters on my VSL application but just cannot hear it through my headphone. now if i turned my mixer on my audiobox to input, i can hear my instrument through my headphones but its dry though, cant do anything add any fat channels obviously. I'm hoping maybe someone can help because im going completely crazy at the moment.