Phono pre amp


About 2 weeks ago I posted this question about upgrading the phono stage of my Yamaha AS2100. You guys gave me a lot of ideas, so I did my homework and chose a barely used Musical Fidelity Nu Vista Vinyl. I'm using the XLR output to my Yamaha. I've played with it briefly and It sounds great. My question is, how do I determine which settings to use? Do I choose with my ears? I have a VDH MC DDT II Special cartridge and a VPI Prime TT with the 10" JMW tone arm. Any suggestions would be appreciated.
128x128chasda
@lewmspecs 
The specs are hand written inside the box the cartridge came in, and the handwriting is poor. I think the output is .65mV. I think the MC resistance is 9 ohms +/- 10%. The load imp is 20 ohms to 47 kohms. There are 5 inputs MC/MM and 8 resistive settings for each. I'm currently set at 47k. It has a +6db setting which is currently on and sounds good. I've read the manual it says use the cartridge set up data sheets which as I said are hand written, or use your judgment as to what sounds the best? Anything else?
Phono cartridges put out voltage, and not much of that, but even less current. Because of the lack of current most of them sound more powerful and dynamic with a very high resistance, typically 47k Ohms. But this can result in something called ringing, an emphasis or hardness in the top end. A main reason MC are often regarded as having an exaggerated top end.  

The solution is to load them down with loads that can go down into the hundreds or even tens of ohms. This greatly rounds out and warms up the sound. But because of low cartridge current output it can also at some point start to "run out of gas" resulting in decreased dynamics, detail and vitality.

Where exactly this point comes is entirely subjective. You can only decide for yourself. We are not talking minor hard to hear differences here either. One will stand out to you as right, or at any rate much better than all the others. Just try some different values. You will see.
@millercarbon Thanks for the explanation. I thought there would be one specific setting for resistance that should be used based on the cartridge. I will experiment with it today to see where the sweet spot is that does what you said. 
Specs for your cartridge show 200ohms load, you can start around there, and listen how it goes.
My experience with VDH suggests a higher loading, but experiment all the way up.

G
very nice cartridge and phono stage, 5 inputs, lots of variability, it remembers settings!!!

your cartridge specs

https://elusivedisc.com/van-den-hul-ddt-2-special-mc-cartridge-0-65mv/

as noted, you are correct: .65mv output; coil impedance 9 ohms; recommended load 200 ohms.

You might simply ask for advice from Music Direct about your cartridge.

You also have the option of setting up slightly different settings for the 5 inputs, then simply move your tonearm's cables to those optional inputs, readily hear any differences.