Node2i has S/PDIF RCA and Toslink out. RCA out sounds best, so you can go RCA to RCA input or RCA to BNC in. You need a 75ohm cable.
If your Ayre has AES/EBU out, you can run AES to the DAC.
Does your dac have separate RCA and BNC inputs? If so, you can use S/PDIF for both devices, although some users swear by using AES.
If your Ayre has AES/EBU out, you can run AES to the DAC.
Does your dac have separate RCA and BNC inputs? If so, you can use S/PDIF for both devices, although some users swear by using AES.