[gates_2]

I just finished my relay- based attenuator for the B22, but it runs off of 5V DC.. I"ve built a little regulated +5V supply. Can I use the +5V from this and the ground from the B22 supply? I ask because i'm using speakon 4-pole connectors to connect the PS to the amp(separate enclosures), and I'd like to keep it simple(in other words, +24,G,-24,+5) or something like that

 

[MASantos]

If the power supplies share the same ground, then yes. If they ahave different grounds then, not.

You may have to explain a little better how everything is setup inorder to answer the question better.