Should I upgrade to XLR interconnects?


I recently purchased a Marantz SA-11S3 SACD player to pair with my Marantz PM-11S3 integrated amp.   The SA-11S3 has balanced outs and the PM-11S3 has balanced ins.  Currently I am using RCA interconnects.  Is there any benefit to upgrading to balanced for these particular units? I do not want to drop big bucks on new cables if the benefits are minimal.
sjtm
I tried calling Marantz but tech support has not called back yet.  In the meantime, I ordered a pair of BJC Canare Quad Star XLR balanced cables.  At $65 / pair delivered, I thought I can experiment without spending big bucks.  WE will see if there is any noticable difference.
Most players/DAC´s have double output voltage via XLR. It means more gain and usually better sound. Also more class A if you have class AB amp.
As for my own experience, sound quality is always  improved by the replacement of RCA cable with XLR cable.