Dedicated 20 amp circuit. 10/2 or 10/3?


Dedicated 20 amp circuit.  10/2 or 10/3? 

mmenasci
Post removed 
Post removed 
Post removed 

I have three dedicated circuits to my audio area and all three are on breakers next to each other on the same side of the panel. 

Since this wasn't mentioned; this means that 2 of these circuits are probably on one 120 volt leg of a 240 volt service, and the other circuit is another another leg.