Marantz CDA-94 hook-up?

Thank you! So I would also have to use a 2 into 1 splitter as there is only 1 input jack(for each system)?

The single inputs are simply the rca digital inputs ....you use a digital coax cable from your cd player/transports digital output.
As for the outputs you have the choice of fixed balanced , fixed rca and variable rca .
If you are going through a preamp or integrated amp you use the fixed outputs .....you can also go direct to a power amp with the cda-94 by using the variable outputs and the volume control on the front.
The cda-94 is very flexible and sounds wonderful , it uses the highly regarded TDA-1541 dac chip.