Hi Scott, I misread your original post a little. I now see why a cartridge is the top of your list (I thought you had the xx2 already). And given your new post, a Lyra Helicon maybe a VERY synergistic fit. That coolness I commented about might be a good fit for your system. In the end, it's the sum of the parts that is most important!
Also, might look at changing the loading on your phonostage, that can open up the top end a touch, or maybe other settings related to the arm and cartrige. Do you have the damping trough on your arm? If so, maybe try taking the needle screw thing all the way out of the fluid. (zero damping) I like this setting best on my SME 20/IV.Vi.
Are your Cardas cables brand new? If so, they need to break in, might take a few weeks here, possible culprit. Speaker placement also might be something to tweek. Seems like every big system change I make, I move speakers around slightly.
I have some other ideas, but maybe this is a start...
Also, might look at changing the loading on your phonostage, that can open up the top end a touch, or maybe other settings related to the arm and cartrige. Do you have the damping trough on your arm? If so, maybe try taking the needle screw thing all the way out of the fluid. (zero damping) I like this setting best on my SME 20/IV.Vi.
Are your Cardas cables brand new? If so, they need to break in, might take a few weeks here, possible culprit. Speaker placement also might be something to tweek. Seems like every big system change I make, I move speakers around slightly.
I have some other ideas, but maybe this is a start...

