Nad C 316BEE Crosstalk

[gasolin]

I have a strange problem with my nad amp, i think it's cross talk

My pc is connected to aux and my cdplayer to cd on my amp

When i select other input and turn up the volume i can hear the sound from my cdplayer or my pc, 2 inputs are weak 2 different inputs is much louder

Is that normal? Design fault?

 

[matthewpiano]

Not something I've come across but I only ever have one input playing music at any one time.