I’m pretty sure “it depends”. I used to plug them all into my power conditioner. I added a direct line. That improved the sound. Then plugged the power conditioner into one of the two outlets on the direct line. Recently I put a direct line directly behind my amp and plugged my amp directly into that… sizable improvement.
So, my experience says amp directly into wall, the other components into power conditioner. Separate direct lines better still. The direct lines are really worth it (10 gauge).
So, my experience says amp directly into wall, the other components into power conditioner. Separate direct lines better still. The direct lines are really worth it (10 gauge).