Reasonable high end interconnects: without breaking the bank

I would say prior to spending even 10% on cables for your system, check out Gene DellaSala's (Audioholics, youtube) advise on what cables can and can't do. You can buy well made, basic cables for very reasonable prices.  

What I have been doing is buying the wire geometries all ready figured out .VH Audio uses the purestSolid Core ,not stranded 
-0 Crystal Copper,using ultra thin foamed Teflon  which is second only to air as a dielectric , then use top WBT ,or Cardas high Silvercontent solder,and Copper Connectors .not Brass like most companies .since cables are marked up often 4-6x the parts cost.
for $250 in parts cost these  better any $1k interconnects I have compared out there ,and speaker cables over $1500  to equal.

Check out The Cable Company and their affiliate Used Cable. I bought new and used Cardas from them. Got the Clear Light, Cygnus, and Sky. Made a very noticeable improvement over my Kimber Hero ICs. I still use Kimber 8TC for speakers.

Free tip - since all (rpt all) interconnects are directional, independent of the shield if there is one, you might find the sound is better by reversing your current interconnects. Hey, it’s worth a shot.

I would add three points:
1. It ain’t just the cost and the sound, it’s the stiffness too. I’’m a big fan of Acoustic Zen—reasonably priced used and well made. But in my system (housed in a Salamander cabinet) they were just too stiff to make the bends. Especially the power cables. 
2. Power Cables. In my experience, power cables easily make the biggest difference in sound, and I can’t explain why, it just is.
3. Second the comments on Morrow. Inexpensive fire what you get and very helpful people. My current system is all Nordost (great but expensive even used) with Morrow SP5 speaker cables. If I had started out with Morrow all around, I’d be just as happy and would have save al lot of money.