ART Legato and BNC to RCA: impedance matching-related question

I have just purchased an ART Legato, to go with my newly purchased Museatex dac (DA44). The DA44 only takes RCA input. The ART comes from the manufacturer's bnc cable, and a bnc to rca adapter.

Regardless, I would want the chance to use a Moray James digital between the two devices (Legato, DA44). Moray's cables are only RCA.

I was wondering: what if I put a BNC-RCA adaptor at the output of Legato, and, subsequently, the Moray digital? Should I expect impedance mismatch? Should such mismatch be much worse than using the first configuration (Legato + bnc cable + bnc to rca adapter to dac), suggested by Pat?

Would there be a way at all to minimize such impedance mismatch, if using an RCA cable like Moray's?

Would I need to measure the impedance of the Moray digital, perhaps, in order to choose the most fitting adapter between Legato and the cable?

Also, would it make more sense if I replaced the BNC output connector of ART Legato, with a RCA output; or, even here, I would incur into impedance mismatches?

Thanks, in case anyone is able to answer to such a specific question.

Tony

Thanks Don, for chiming in such a self conscious, yet precisely articulated insanity.

The thing here, is I cannot use the supplied adaptor: that's a female to female BNC/RCA.

I need to use a male BNC/female RCA if I want to take the adapter at the output level of Legato, and have the RCA cable downstream. Then what would assure the retention of the correct impedance matching?