Hallo Eric, welkom op dit forum.
Een surround gebruiken voor stereo is niet altijd een succes. Er is een Pure Direct optie aanwezig, die zou je kunnen gebruiken om te zien of dit verbetering geeft.
Uit deze test:https://www.avforums.com/reviews/pioneer-sc-lx76-9-channel-av-receiver-review.469/
Lees ik dit: When it comes to stereo and multi-channel music, the internal DACs do a great job of converting the digital signal to analogue and as a result there’s excellent definition in the bass, while vocals sound clear and direct. As we found with the SC-LX86, the musical performance could sometimes sound a little clinical, especially with stereo music, lacking the warmth and musicality of the Anthem receivers for example. There are also built-in digital filters which allow you to switch the Pioneer’s sound between ‘slow’ (soft and warm), ‘sharp’ (solid and tight), and ‘short’ (quick and forward). We would recommend that you experiment with the different settings to find which you prefer but note that enabling the receiver’s Pure Direct mode is the only way you can bypass the filters.