Analog Front End Next Upgrade


My analog front end currently consists of:

VPI Prime Turntable
MC Scheu SL Cartridge
Lehmann Audio Black Cube SE II

I'm using Cardas Iridium cables, and everything feeds into an Auralic Taurus MkII headphone amp.  If you had a $2000 budget, what is the weakest link, and what would you upgrade first?

I was thinking about upgrading the cartridge with either a Lyra Delos or Dyna XX-2, but was not sure if the black cube SE II is resolving enough.  The other option I was considering is going with a Lehmann Audio Decade phono stage.
cbl117
@raymonda Thank you.  I'm not quite sure what separates the Scheu SL from the Benz ACE SL.  There's also not much press on the Scheu SL cartridge so its hard to know how it compares to other carts in the $1500 price point. I've owned an ACE many years ago and I do think the Scheu is a step above the ACE, but I wish I knew what Scheu does to differentiate their cartridge and justify the price increase.

From that perspective I do feel like my cartridge is a bit of an unknown quantity, and I'm looking forward to seeing if a more resolving phono stage like the Lehmann Decade will bring more performance out of my table/cartridge combo. 
Yeah, I would've done either the same or got Sutherland 20/20.
However I am a Purist Audio cables fan and don't use Cardas, though I am unfamiliar with his newer cables.
@nordicnorm, your argument that solid state phonos offer more bang for the buck than tube doesn’t wash especially with your comparison of a new Allnic 1201 at $3,500.00 (can be bought new from a dealer on Agon for less than $2,600.00 and have sold one slightly used my self for under $2,000.00) to a used Blue Circle for $2,000.00. If you haven’t heard the little Allnic you really need to give it a try.