A quality properly shielded cable is all you need. My issue with the ones supplied was the bnc connector not mating well with the dac and any movement of the cable causing drop outs. This was fixed when I went to 1.5' Viper from Monoprice for $10 Cad. The Moon dual bnc to my H2 did not have this problem but it's connectors are very well made. We used to make lots of bnc jumper cable for our remote I/O networks and the connector and especially the care in crimping was everything.