5.1 setup change info

Hello. Currently my setup is as follows:

7.1 centers

BL2 sub

8000 front

BL 6000 Rear

I connected the whole thing to my Sony TV via Almando.

i want to change it as follows:

7.1 centers

BL9 Front

BL3 Rear

The only question is: does that make a big difference for films and co if it feels like 90% is only going through the center speaker anyway? When it comes to music, the BL2 bothers me a lot. He’s good for movies. But the bass of the BL9 should be sufficient.

Does anyone know about Almando? Can you then just use the BL9 for music and deactivate the center completely? I’m technically more of a layman.

thank you for your help