NAC to Stageline N to FlatCap

With the FlatCap connected to the NAC 112, where does the Stageline connect to.

Seen manuals showing it connected to either one, but not sure which is the best to connect to and what Snaic would be needed.

You can either connect via the AUX2 on the NAC112 (SNAIC5), or, if it’s a Flatcap2 you could use the second supply (22v on the FC2, 24V on the FC2x and xs). For that you 'll need a SNAIC5 and a 4-5 interconnect.