Where is the bass on my B&W 802d speakers?

I have my speakers out from the front wall 24", 8' apart and 4' from the side walls. Soundstage is very 3-dimensional. When I push the speakers closer to the front wall, say 6", the bass is improved and the tweeter energy sounds toned down.

However, I do lose the soundstage.

Someone, in one of my posts insisted that my preamp and amplifiers are not a good match for my speakers. Can anyone elaborate as to why?

@onehorsepony unfortunately as you hear for yourself in your space... Speaker/room synergy is more important than any amp you buy. Bass nulls don't just go away because you got a new amp. this is how people here get stuck in a cycle of purchasing things because someone told them it will solve something without actually addressing the physics of why there are nulls in the bass region in rooms. What you need is a measurement mic and Room EQ Wizard, corner bass traps and a subwoofer

@kofibaffour  +1 Room EQ Wizard

The first thing to do if you want to fix a problem, is to determine exactly what the problem is.

What is your room size and what amp are you using?