Maybe this was asked before but I don't even know how to do a search for this. I am confused as how am I supposed to 'gain stage' with Magellan 800. I kinda 'forgot' to post NEW AMP/CAB DAY

I got myself Magellan 800 + Bass Array 12-3 and I have another BA-12-3 slant coming my way.
It has the gain pot and pad pot and I 'technically' know what it does. I am too used to tube amps (coming from guitar world and this being my first class D amp), and in that case the tubes clip if I apply too much gain, but the clean channel 'volume' is just the volume? Does it then matter if i pad the signal and keep volume at 50% which would give me more usable range on master volume? Or do I go as high as possible on channel volume, just before the clipping led lights up for the 'best signal to noise ratio'? I am just not too sure how the volume pot works here.
Is there a sweet spot? I didn't hear any tone difference when changing the volume.