using EQ on music streamed from internet

In my totalmix software i have 3 channels that are called AS 1/2. There is one of these in the Hardware Inputs, another one in Software Playback and another one in Hardware Outputs. My speakers are conneted to AN 1/2. When i play any audio whether it’s in Cubase or in Windows, then in my totalmix software the channels that have their level metres playing are the AN 1/2 channel in Software Playback, AN 1/2 channel in Hardware Output, the AS 1/2 channel in Hardware Output and the Main channel in the Control Room. So based on this, which one is my Cubase Master playback channel and which one is the Window playback channel? Based on what’s going on in the totalmix software, aren’t the windows and master cubase playback channels the same?