Yes wires can and often do sound different.
How much do they matter and how much should they cost? The only possible answer is "it depends".
In general. I’d reserve a fairly small % of overall budget for wires. The smaller you can get away with the better. After all, they are only wires. No rocket science needed there if all else is well.
Good quality wires made for pro use are always a safe bet if not sure how to cut through all the BS one will encounter with many products marketed mainly to audiophiles.
How much do they matter and how much should they cost? The only possible answer is "it depends".
In general. I’d reserve a fairly small % of overall budget for wires. The smaller you can get away with the better. After all, they are only wires. No rocket science needed there if all else is well.
Good quality wires made for pro use are always a safe bet if not sure how to cut through all the BS one will encounter with many products marketed mainly to audiophiles.

