Speaker Cables

Kimber has interconnects made which have better bass. Hero. And speaker cables, the VS woven type, 8VS and 4VS. Which use the same insulation that (magically) provide better bass.  
This is not maybe. They really do offer better bass 100% no bull.I used to use Hero, Now I use KS1116 and KS1016 which also offer somewhat better bass.

These AudioQuest ones!! 
https://www.thecableco.com/dragon-zero-with-firebird-bass.html

Check out reviews https://thewirecutter.com/reviews/the-best-speaker-cable/

All you need to focus on is distance and the damping factor of the system. If you are using modern solid state gear, the DF is mostly irrelevant. Unless it’s a long run and super low impedance (1ohm), just get 16awg or lower.