Question

I have the Audio box usb and a AT2020, I am using Windows playback and it is only coming out one ear, I imagine it is to do with the fact my mic is plugged into the left channel. How do I get windows to play it through both ears or the box to send the signal as stereo to my headphones that are plugged into my computer.

Answer 1

This may be because most streaming software, even Skype for example, can only use WDM audio drivers.  WDM audio drivers are mostly used in pairs.  Channel 1 and 2 or a Left and and Right signal.  It is up to the software you use to use only a single input at a time.  Some streaming software do not let you choose only a single input channel.  Thus if you are using a single input channel, you will only hear it on one side.

You will want to use a software which can use the AudioBox's ASIO driver.

https://www.presonus.com/support/downloads/AudioBox-USB

Answer 2

Are you using Studio One as your DAW?

You can have it play through both speakers if you wish, even if it's a mono track.