Upgrade from TW Acustic Raven AC-3 to what?

I have heard this table a few times and its not dark sounding at all.
First off, the cart- what cart are you using it with ? try some clearaudio carts if you want it to be more detailed and neutral. Lyras are also on the neutral side of things.
2nd- as other suggested, the isolation stands. Critical mass stands (CMS) is a good place to start. Makes the most out of this TT.
3rd- arm- I heard this table with a variety of arms and each has a different sonic signature. Graham Phantom II, Triplanar are the arms of choice.
4th- as what people have shared in this thread, the vta and the vtf all makes a discernable difference with this TT.
5th- the phono cables again, can impart sonic signatures. Try some nordost phono cables for a lighter, airer presentation.

Good luck. Its a good problem you have!
If all fails, the SME 20 would be nice as well as the TW Black Knight. CLearaudio is also another candidate.

Walker, period.

I believe every well healed audiophile should own this table once in their life. It is the most revealing table you will every hear. There is n-o mid bass bump, and there is that enormous soundstage that you will remember forever. I had six years on mine and I still think about it most every time I play a record.

Peter

Peter, "Well-healed" indeed. Maybe after dropping that lead platter on your big toe. I have been impressed by the Walker too, every time I have heard one.

I am sure you will end your upgrade itch with a Walker Proscenium Black Diamond.

Go for the EMT table....studio sound is the best!