Help with first cable upgrade.


I have a Musical Fidelity v-150, rotel rp-3000 turntable and an old Sony CD player.  I have 2 sets of speakers B&W CM2's and JM Lab chorus floorstanding speakers I may have to part with due to space.  My power cables and interconnect cables are cheap stock.  My speaker cables are a 20 year old or so set of MIT shotgun cables.  Any recommendations for budget friendly cables that may help the bass or soften the brightness of my system?  Thanks.
shimanole
Mogami W3082 is better than W3104, more transparent, the 3104 is colored...
You might consider these for interconnects:
https://stagersound.com/silver/Amazingly good, transparent and uncolored.As for your Sony CD player: weak link,but if the transport is good, (and it has a digital output) a decent outboard DAC will make an enormous improvement.