Hi dangerusty,
We do not recommend running more than 3 instances of Squeezelite on a normal Raspberry Pi 2. We do not have a known limit for Odroids. Although it is possible, the output can suffer from that many simultaneous instances. For this we recommend using multiple Raspberry Pi’s since their cost, power usage and size is so small that its more advantageous to use more Pi’s for more players.
