Could you please tell what crossover and EQ? Is it a PC-only as a source? How do you control the volume? Thanks.
For music playback, I can use Roon to control the volume, just using my iPad while sitting in listening position.
For movies on the PC (Netflix etc) playing to TV and Projector, I can control volume using the convolver program - using a bluetooth combination keyboard+mouse from listening position to adjust easily.
Usually for a movie you set to one volume and don't need to touch for 2 hours but it's easy to change.