RCA to XLR adapter, advantages of special boxes ??


Dear All i need to connect my CD player to a DAC converter. Doing this i would need an adapter S/PDIF coaxial RCA(CD)/ XLR(DAC input).
What's the advantage of boxes like the one below ??
Can't believe that such an higher expenditure does not bring any better music result, isn't ??
If the box is useless, could you give me a good adapter cable producer that will make the sound thrilling without pulling my legs ?? (range 50-70 USD for a pair)
Tks
http://www.midiman.net/products/m-audio/images/co3_lrg.jpg
ad010685

Showing 2 responses by ad010685

I want to thank you all 3 guys that helpend with good advises. Few more info as a feedback for your courtesy:
the DA converter is a professional one used in recording studios, this is the reason it has XLR plugs.(believe me much better that hi-pricey DAC often sold at hi-end)
Unfortunately, but with a future upgrade this could be improved, my CD player has only two possible output:
S/PDIF coaxial RCA or Toslink lightpipe. This is why I need to take the single ended from the CD and plug it into the DA converter.

At the same time the DA converter has XLR output and as usual my preamplifier has a simple RCA input !

Yes, JAX2 I realized I will lost the balanced advantages, but as said, with a future upgrade..........

Tks to anybody so far
WOW, discussion became hot ! I really appreciate your help.
Question: if I shall invest some money, for that Monarchy box, wouldn't be better to invest it in a new CD player with AES/EBU output ??
Which prices ??
I could sell my actual one (DPA Enlightnement) that has already 5 years of operation !
What do you think about ??
Which budget should I afford for a decent cd player?It might be that 500 USD will beat already my DPA, isn'T ??