recommendation for speaker wire to soften the highs if possible


Hello,
I need help. My problem is my system sounds harsh on the highs to me. Not extremely bad, but enough that I need to fix it. My system consists of Ryan 610's, oppo Sonica Dac, and a Belles 150a hotrod amp. Speaker wires being used are old monster cable from the 90's. I also have monster cable rca. I mostly stream through Tidal. My question is can I make the desired effect by switching cables or should I add  a tube amp or pre amp. My budget on the wire would be around 300.00
Thanks in advance for any suggestions
128x128gunmetalzin
How about acoustic panels behind the speakers? Experiment first with blankets/ pillows to see if they make a diff.
Check out GIK Acoustics, they make beautiful "art panels"
Could it be the tweeter and how you perceive hf sound?. Did you try a different speaker?.
. Richard Gray power conditioners are warm and will soften up the highs. Model 400 are below $300 on eBay.
. Vintage MIT MH-750 Plus speaker cables (white color) on eBay for around $300 are (very) polite, low white noise and really soften up the highs.
. Vintage Goertz speaker cables can drastically cut off (some) the highs completely.
*** Speaker cables will/may change characteristic of your system a lot so I’d suggest Richard Gray power conditioner. It mated very well with My Belles 150 Hotshot years ago. I then moved on up to Dave’s Reference a150 v2 and couldn’t be happier.