Question for surround sound seperation

My goal for my theater room is to use higher quality speakers of medium size while maintaining great source separation on surround sound soundtracks. I have no idea what theory, setup, or misconfiguration I am lacking so I am asking for help.

Currently, I can either set up my small satellite speakers for 5.1 surround and get tinny, but well defined location-sound. With my "real" speakers, everything sounds great, but the sound field blends together and nothing really stands out.

Front RL: B&0 RL140 (wall mounted straight towards listener)
Center: B&W center 150watt (below TV angled upwards)
Rear RL: B&W 602s (as suggested by the 5.1 layout (against side walls facing listeners ears)
Sub: 150 JBL
Receiver: Yamaha 95w RX-N600

The other problem is the room may be too small for the speakers I own. The room is about 20ft x 12ft with the 20ft wall hosting the TV.

The other (maybe related) issue is that usually, the music overpowers everything, including voice and sound effects. It feels like I am not getting good dynamic range (maybe to due power needs?) I have messed and played and researched but I am missing some concept or hint to point me in the right direction.


*checked all dynamic range settings
*distance configured
*speaker polarity verified

Thanks a bunch for your time and knowledge!

Replaced TV and doing the 1hr burning.
Sofar, all light leakage is down to almost nothing, even on dynamic settings. Also, the delay is gone (even with processing features turned on).




The contrast was increased a bit to show the issue clearly. The main problem was the light in the middle coming from above the logo.


Will update with more info when burnin is complete.