This is what I am using for cable and connects:

https://www.amazon.ca/gp/product/B0076SFE9Q/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1

https://www.amazon.ca/gp/product/B006U3O566/ref=ppx_yo_dt_b_asin_title_o09_s00?ie=UTF8&psc=1

I can't help you with CD players. I use my PS3 and a Pioneer. The vast majority of the time I use Spotify Premium.

House of the Rising Sone
Out in the mid or far field
Dedicated mid-woofers are over-rated