What is meant when someone says a component is lacking soul

I have seen this mention in some reviews of the bell canto Evo 2i gen ii integrated amp.

smoky20404-24-2018 1:03am

tooblue Details Discussions Posts This discussion Message User 787 posts 04-24-2018 at 04:51pm Copy Comment URL Report Comment Edit Delete The music is non involving and does not draw you in.