Pioneer SC-95 upmix modes

[blitztorte]

Hello QQ. I am watching/listening to a music concert streaming service called Qello. The audio is two channel. I can select among the following listening modes on my receiver when watching Qello:
Optimum Surround, Auto Surround, ALC, Direct, Pure Direct, Ext. Stereo, Dolby Surround and Stereo.

Ext. Stereo gives me the biggest sound but none of the modes really offer an upmix mode from what I can tell. Am I missing a setting somewhere? Or are upmix modes only available using other two channel sources? Thanks.

 

[Lord British]

I have the same receiver and it should upmix using Dolby Surround. Is the stream coming from your TV through the SC-95?