Interconnects under 300


I'm currently using a marrow sa 2 from my pre amp(marantz 7005) to amp (mccormack dna1 gold rev)
is there any interconnects that you guys have used that would be night and day difference under 300?
Btw I use kimber 8tc and Nht 2.9 any suggestions

128x128thirsty93
I’ve had great luck with Transparent MusicLink cables. They destroyed my Audioquest Big Sur cables in terms of sound and definition.
I was looking at the specs on these and I was comparing them to other ic.how to the numbers work 
cp
ls
rdc
is the lower number the better?