Impedance Matching in the Modern Audio System

Hey everyone, I'm still learning a lot about audio and audio equipment. I know that I am supposed to impedance match my components, but my question is this:

If I will have 1 source (In my case a Bluesound Node 2i streaming DAC) that will have an analog out to an integrated amp, do I need to worry about matching the impedance of the analog out on the DAC to the input on the integrated amp? I can't seem to find the impedance for the analog output on the Bluesound Node 2i, but if I were to find it, how would I know if the input is properly matched on the integrated amp?