I am upgrading to the Matrix X-Sabre DAC soon. It has RCA and XLR outputs. I was thinking about connecting the Crack using the RCAs (2.2Vrms) and the S.E.X. via the XLR (with an XLR-RCA adapter cable), but the XLR outputs at 6.8Vrms. Will this cause any issues and would I be better off connecting the Crack or the Mainline with the high voltage input?