Questions for Shindo preamp owners

Hi Folks,

Need your help.

I’m quite interested the Shindo Giscours and would like to pair it with my Wavac EC-300B power amp. Problem is Shindo Giscours only has XLR output whereas the Wavac EC-300B only has RCA input. 

A friend has suggested a Shindo Silver XLR to RCA interconnect cable. My questions are:

1. Would this cable degrade sound quality?

2. Would this cable reduce the gain, making it harder for the Giscours to derives the Wavac EC-300B?

3. Is it common for Shindo preamp users to use such a cable, especially given that some of the Shindo power amps only have RCA input. How would they connect their Giscours/Vosne Romanee(XLR output only) to their RCA only Shindo amps?

Many thanks in advance.

Steven