I would try draping a light plastic painters sheet/tarp over the sofa to the left and also over the HT speaker to the right (maybe both of the HT speakers).
Both the sofa and the drivers in the HT speakers are absorbing sound.
DeKay
Looking for wider soundstage
My system consists of:
parasound a21+ amp for LF
rogue st 100 dark for HF
Aurender n10
schiit Yggy dac
don sachs 2 preamp
legacy signature se speakers
Looking for wider soundstage room is not treated but it’s not bad and I have moved speakers around Thanks for any advice I have believed my amps could be better but not sure thanks in advance