I might suggest a couple of things to try.....
First is to move the speakers around. Look for a change is sweet spot in the room. Change your listening position.
And I noticed a sudden lifelessness in my own system the other evening. I noticed that I had accidentally hit the Invert button on the remote for my Herron VTSP-3A preamp and inverted the absolute phase across the entire system. I hit the Invert button and changed back to normal absolute phase and the system woke up again.
So maybe try inverting the leads on both speakers to see if that doesn't make a difference.
Don't ask me, I used to never believe in absolute phase, but it made a difference on this occasion for me in my system.
First is to move the speakers around. Look for a change is sweet spot in the room. Change your listening position.
And I noticed a sudden lifelessness in my own system the other evening. I noticed that I had accidentally hit the Invert button on the remote for my Herron VTSP-3A preamp and inverted the absolute phase across the entire system. I hit the Invert button and changed back to normal absolute phase and the system woke up again.
So maybe try inverting the leads on both speakers to see if that doesn't make a difference.
Don't ask me, I used to never believe in absolute phase, but it made a difference on this occasion for me in my system.