How can we help you?

With miniDSP 2x4, unless 2 x miniDIGI boards are stacked on top of one miniDSP kit, it's not very easy. Easiest is to consider the nanoDIGI in that case which is much easier to implement/use. The nanoDIGI has more than 8ch of digital outputs and will end up being lower cost than trying to build a 2x4 + 2 x miniDIGI.