Possibly silly questions, splitting signal

[joecool85]

Alright, my brother is getting my LM3886 setup and adding another LM3886 to make it a dual mono, he wants both channels driven by one input.  Couldn't we just tie the two inputs together?  From what I gather, we can, since they are all on the same ground and whatnot.

[teemuk]

Yes, you can do that. But don't just tie them together, use mixing resistors to ensure that the stages cannot directly load each other. Like this:

           ___/\/\/\___ Amp1
          |       
Input--o
          |___/\/\/\___ Amp 2

[joecool85]

Well, the plan is to have it like this:


                                       |-> left channel pot -> left channel amp circuit
Input ->  Master volume pot |
                                       |-> right channel pot -> right channel amp circuit

That should be fine right?