Does having an object inbetween the speakers bad?

I agree with Mapleleaf3, take a hard look at your gear.

Tboooe, from my experience trying different interconnects will greatly enhance a good system, increasing transparency etc but will not transform an inferior one. I try to select gear that is known to offer a large three dimensional soundstage. Unfortunately I have had gear in the distant past that only offered a 2D sound in the same room. The culprit can be just the preamp, power amp, or both. Replacing this undesireable gear was a revelation for me. By no means am I suggesting your gear is inferior but you would have to come to your own conclusions maybe after trying everything else including some of the above suggestions.

Taboooe, your shortlist is excellent. I especially like the Bat. I understand this amp is a zero negative feedback design and has only two gain stages (a very good thing!). Build quality is about the best I've seen & should provide the sound your looking for.