Balanced vs RCA between amp/preamp


Well I'm taking my first step into separate components with a Marantz SC-11s1 and SM-11s1. Would like to know about the +/-'s of using RCA vs balanced interconnects between the two. All my input sources are single ended.

I understand the Marantz components balanced connections have pin 2 wired cold and pin 3 wired hot. Does this mean I need to reverse the cables going to my speakers (if I decide to use balanced connections between amp/preamp).

I also understand the RCA connections conserve absolute polarity. But is there a performance "hit" taken by using singled ended connections between amp/preamp?

Thank you in advance......
wec56
Good point Millercarbon 

one other thing to consider is the Marantz actually true balanced or just single ended looking as balanced. True balanced is a lot harder to do and can give benefits in cable cost and ability to run longer runs. true balanced negates many of the issues with cables and EMI as the balanced signal cancel out the EMI more then single ended can.  In theory you don't need to spend huge money on balanced cables as they require less shielding. 

I'm sure someone here with more background in balanced systems can inject more information and details as to the benefits losses.
Balanced gives you better electrical noise rejection (if you need it), but costs more and requires additional circuitry to make it  (less is more).   I don't have a choice since my current and previous amps have only XLR inputs, but I still appreciate locking feature.  In addition to locking XLR has only female end exposed - in case something gets disconnected.  It is additional protection from touching "live" wire.  
I've read plenty of reviews and checked the Marantz site and cannot confirm either unit is fully balanced or just has the balanced connections so no help there.

I agree with Millercarbon that listening is the proof. Thanks for your input gentlemen.

Any other input is welcome......
Read third post down from KBK...great explanation.  

https://www.stereophile.com/content/balanced-xlr-vs-unbalanced-rca-1

The fact that the Marantz units and your sources are not fully balanced means you will likely experience minimal gains vs. single ended connections.  in fact, there are occasion where you will find the single ended connections may sound better.  I can't speak about those explicit units, bit I have an amp where the single ended connections definitely are better than the balanced.  
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