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
Take a look at KLE Innovations
https://kleinnovations.com/kle-innovations-klei-products/klei-qseries/klei-qseries-ics/klei-qflow1-i...

Even though I have not tried this model, I have tried most of their lineup and they make some extremely good cables that perform exceptionally  well.

The price is Australian dollars, so with the conversion they are within your budget

Regards - Steve
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?