Behringer UMC202HD - HELP!

Hi there, Ive recently purchased a Behringer UMC202HD 192K audio interface to use with-in Cubase 5 on my MacOs High Sierra but every time I set the device in the ‘Device Set-Up’ tab, I am faced with a horrible static/white noise constantly coming through both the headphone or monitors depending on what I choose to listen through.

Please can anyone help as it seems to work fine when using iTunes etc.

I’ve set the format in the Audio Midi Setup tab as 2 ch 24-Bit integer 48.0 kHz but regardless of what I set it to, it still has the same outcome and I’m worried I’m doing something wrong?

Regards

Matt Aldersley