Genuine question

I have src dx to mscaler. I use a quality budget Bnc cable. Would a better Bnc cable make much difference? But how would wave cables which I thought were made to reject a certain bandwidth be having an important effect on the Bnc signal out of the src dx? What frequency are the signals in src dx at
@Triode User or what’s your thoughts on this.
Is anyone using a jitterbug with their src dx, I am, “can’t hurt”, I don’t respect my own ability to a/b test, but my rig is insanely good to me.
Audirvāna -> Laptop -> jitterbug -> sablon usb -> src dx -> mscaler Bnc in -> wave stream Bnc out -> opto dx t+R => regular Bnc cables to tt2 -> compact alnico speakers and omega sub.
My current Bnc cable from src dx ti mscaler is :
75 ohm BNC to BNC Lead. Van Damme Coaxial Cable. RG59
I suppose im considering upgrading something… not sure where or what…. But the Bnc cables could be something, thinking maybe adding an etude, or then there is power supplies. Currently everything runs off batteries with accompanying regulators, mscaler using this DXP-3A0 and DXP1A5 from Alexey.
I also have to say, the addition of the speakers takes the musical enjoyment way beyond what I experienced with head phones. Respect !!!!!!