What would you upgrade next ??


My system is finally sounding pretty good. Actually gives me goosebumps. But I'm always looking for the "weak link" in the system. I'd like opinions on what to upgrade next. I'm looking for retrieval of micro-details, air and space around each instrument and voice, 3D imaging, "palpability" of all the voices and instruments. Here is my system:
CDP: Arcam FMJ CD23T
Pre: ARC SP3c (complete upgrade/restoration at factory)
Pwr: ARC VT100 MkII (just re-tubed)
Spkrs: Acoustic Zen Adagio
Sub: Focal JM Labs SW900
Interconnect and Spkr Cables: Analysis Plus
Other: Speltz Autoformer set for 2X, use 8 ohms taps.

Thanks for your inputs.
MABonn
mabonn
Cables- Replace the APs with Clear Day Solid Core Silver in shotgun. Next, replace the CD player with a Raysonic 168- add cryoed NOS and Herbie Tube Dampeners. I was able to eliminate the preamp in my system as the true balanced tube output of the 168 is extraordinarily transparent
My system is finally sounding pretty good. Actually gives me goosebumps.

If that's really the case, then most changes you could make would probably not improve what you've already got. My advice is to take the money you would spend on equipment and spend it on new music.
I am truly amazed by the responses this thread has generated. The question is, "if my system gives my goosebumps, why change it ?" My experience has been that you won't know the detail you are missing if you have never heard it. Like trading up from a Nikon to a Leica or a Hasselblad. If you have never seen a photo taken with the better optics, you might think the detail presented by the Nikon is "all there is". Can I improve the resolving power of my system ? If so, what upgrade would give me the best "bang for the buck" ?
Can I improve the resolving power of my system?

Suppose the real answer to your question was -- NO. Could you deal with it? Is it possible that without replacing virtually every component in your current setup that you won't be able to improve the resolution of your system? I don't know the answer to that question, but I do know you are doing a disservice if you don't at least consider the possibility of answering YES.
Have you tried a really good headset? This might give you the new experience which you seem to seek. The very best headsets show you how far loudspeakers have to go. Not the most convenient, but...

The other thing your system lacks is equalization for room effects. By now everyone knows that I like the Behringer DEQ2496, but its low cost ($350 including mic) may scare you away. So go for a PARC (but it doesn't have a RTA).