Hi Bruno,

Whoever told you that the surround tracks are mixed back into the front channels if you leave the system in 5.1 mode is wrong, as you discovered when you listened to the front speakers but left the playback in 5.1 mode.

You have to select a stereo mode or similar (Stereo Mix) in order to preserve the information that would normally be routed to the surround channels and the center.

Regards,
Alan

Alan Lofft,
Axiom Resident Expert (Retired)