Excellent affordable cables and interconnects.

I agree that Gregg Straley's Reality Speaker cable is wonderful.
With regard to interconnects, there is another fabulous choice from Joe Mazzaglia's Auricle Audio Design:
the uniquely designed hand crafted Encore Kapton IC's. His auctions can yield an even better bargain than the modest original list price.
His Signature Digital IC is incredible and also a bargain.
With every system and its owner being unique, there is no way to guarantee your personal "best" is identical to mine. But these are choices where you keep hearing so much pleasing detail with accompanying harmonic richness when a recording is great. I also like the flexibility of Joe's IC's.
When prices are reasonable there really is no special risk involved in choosing from highly recommended items.

Dracule1, yes I compared the LAT IC-200's (which are still in service) to the Straley Oxygen Free Copper IC (which I have sold). These are comparably priced ... the LAT slightly more(~$300). In my system, the LAT's are more musical. Each offer trial periods.

Ultimate Cables from Montreal are an excellent value, even at $ parity. Teflon insulated copper/silver mix.

Mogami finally makes terminated IC's. A 'pro' favorite.