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
Plenty of talk here about Canare cables. Used mainly in studios, live performances and catching on for home use for great cables for the price. Can be purchased on Amazon or mainly places online. I find them a tad on the more warner side but they they don’t give up on the upper end. BH Photo is another place to find them.
Audio Envy cables are very reasonably priced, slightly warm sounding with good bass.Good build quality also.I haven’t tried their speaker cables,but the ics and power cables are very good. There’s a long thread here in the cable forum with lots of user comments.https://forum.audiogon.com/discussions/audio-envy-dang
I wouldn’t get too carried away with interconnects an definitely not with power cords I would try amp first). If your system is a bit sterile… go with copper… if it about right silver coated copper… we’ll leave silver to really high end or very warm equipment.
I think DH Labs and WireWorld would be good places to start. These are well regarded (DH Labs for cost effective) highly reviewed and respected brands. At this stage I wouldn’t spend more than about 10% the value of the component you are putting them on… maybe 15% if you find something you like. The difference these things make gets bigger and bigger the better your equipment. Pretty quickly you can get to the point where the money spent would be better spent on a component upgrades.