I don't like the sound of my system. Help please.

Did you EVER like the sound of your system?
What has changed, since then?

(your health, your ears, the furniture in your room,
floor and wall treatment in your room,
your listening position, the temperature/humidity of the room,
the load of lighting and other electrical devices on the same circuit,
or nearby...)

The list can go on and on, and we haven't even talked about
any equipment, yet, let alone dollars.

Could there be an analogy to an online conversation with a
relationship counselor, when they hear "I don't like X about
my partner!" What kinds of responses are you looking for,
with the limited information you are offering, and the multitude
of variables that can be addressed in any given response?

Have u treated the room with any acoustic treatment? This just might be the ticket and not the gear at all.

I'll chime in here. I had almost the exact same problem that you describe using the Vandersteen speakers and a solid state amp and tube preamp. I changed all my source components, speaker wires, audio cables, power conditioners and the sound was still thin. I finally changed the speakers and all the thinness went away. I believe it had something to do with my room because I moved the Vandersteens upstairs to my secondary system and the thinness was gone.

My point is I spent over ten thousand dollars on different components and in the end, it turned out to be a speaker/room problem. If you can get your hands on a different pair of speakers, I would try that first because if the sound is as thin as you say, no amount of cables or equipment will make up for it.

there is one component that will solve your problem. get a conrad johnson mv 125. it will, however, cost more than $1200.

Listen to what Stereo5 is saying, he is giving you solid advice here. You can change cables and upstream components till the proverbial cows come home (and lots here do!) If your speakers/room don't sound at least decent from the get go, you will be fighting a hopeless battle. At minimum, try some other speakers on loan or a friends set if possible, and do experiment with placement within the room if at all possible, you will be surprised.