Yes it does (first of all,sorry for my english as it is not my main language)the best way is let your main source only coupled to your preamp nothing else.
(you will listen the clearest sound your system provide)all the components
coupled to preamps including their ics (and over these ics)gave the vibration
energy variable type of ics termination material including cable s material
(such as brass connecter or teflon or etc...)and this effect always causes more
solid less airy and texturel presantation do try only your cd player coupled to preamp you will get more relax and transparent sound,even rf and emi stopper caps if put on the empty inputs of preamps your sound again get compressed some amount.
My advise take off other ics while you are listening cd,and when you want to listen tuner just plug its ics into your preamp.
Best regards
(you will listen the clearest sound your system provide)all the components
coupled to preamps including their ics (and over these ics)gave the vibration
energy variable type of ics termination material including cable s material
(such as brass connecter or teflon or etc...)and this effect always causes more
solid less airy and texturel presantation do try only your cd player coupled to preamp you will get more relax and transparent sound,even rf and emi stopper caps if put on the empty inputs of preamps your sound again get compressed some amount.
My advise take off other ics while you are listening cd,and when you want to listen tuner just plug its ics into your preamp.
Best regards