You may find upgrading your cables an exciting journey.You also may realise cables to be components among themselves.
It is absolutely NOT necessary to spend a fortune on cables to get jaw dropping responses when listening. I learnt that cable matching takes patience and a bit of frustration as each change you make will take a few days to settle and when you consider that everything connected in your system affects the sound that it can take time to get your desired sound.Remember that as much as plugging in a tuner will affect your total sound regardless the source component your listening to. A tuner for example affects the overall sound just by being plugged into your preamp regardless if it's on or off and of course the interconnects and power cable will affect your overall sound. This is my experience.