just joined Volumio, have a few raspberry pi,s about the house 1 running Picore player, and this other 1 using a Nanomesher hat with a pi2 and Volumio through a Teac amp to Mordaunt short ms2 speakers .could not get it to produce any sound using the cheap cables you get with virtually any electronics item these days so I have bought some cheap RCA cables to see if this helps if not I’m gonna be asking a lot of questions on here, hope you don’t mind .
Hiya,
Welcome on board, feel free to ask questions, bear in mind that some questions are harder to answer and might take some time 
Other than that, have at it!