Anybody use a single ended component with one that is balanced?

I'm using a Zesto Leto preamp with a mix of RCA and XLR sources .   They all sound great ,  I'm driving a pair of Quicksilver Mid Monos and my sub controller  via its RCA outputs .  The difference in volume is often perceived as sounding better but I think anyone would be hard pressed to tell the difference .  The best thing about this pre is that any type of input will be output simultaneously from the dual RCA and XLR stereo outputs.... it can drive 4 amps, or a mix of amps and subs.   Its killer.

In summary. Don’t worry about it. Go for the best components you can, and if you end up with a system in which all components support balances, then , if you have the money you can swap interconnects to balanced and see if you can hear a difference… maybe, maybe not,

How about these as a compromise Neutrik NA2FPMF 3 Pin XLR Female to RCA Jack Adapter

Yes, I'm running a SE pre-amp (Manley Neo Classic 300b) with a fully balanced XLR amp (EC AW250R) and it sounds amazing.  I had AudioArt cables build me a pair of XLR/RCA interconnects.  Also, prior to purchasing I sent emails to both Manley and EC to ask if I should expect any issues.  Got the green light from both...made the investment...and couldn't be happier with the outcome.  Glad to share more info if interested...

I guess I wasn't clear....if you have differentially balanced components keep the XLR connection....gives greater dynamics, cleaner, clearer, immunity to cable sonic variability, etc....not only is it louder.   If you're happy with your single ended sound continue....all will be fine.