250 Pro vs. 250 Upgrade Review

[rbsound]

rbsound
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Unfortunately, I’m still not getting the quality of sound out of my turntable that I’m hoping for. While this has nothing to do with the upgrade (the phono stage did not change), it just didn’t get any better. I have an Acoustic Signature WOW XL turntable with an Ortofon 2M cartridge. Not sure if the Devialet phono stage isn’t up to it or if I need to consider a different cartridge. But I digress.

Hi rbsound. I realize I am replying to an old post here, but did you find a way to improve the sound for vinyl? Your 2M cartridge is moving magnet and should see a load of 47kOhms or more. I believe the input impedance of Devialet's phono stage is max 14kOhms. A better match would be a high output moving coil for MM gain or a low output MC with the phono input set for higher gain. A step up transformer +low output MC +MM gain is an alternative (like f1eng is using), but a SUT is also generally designed for 47kOhm load so care should be taken here.

Where did you get the info that the MM input is only 14k?

Regarding resistance and capacitance, the tooltip within the Configurator says "useless and disabled for MM cartridges", so one can't assume the max settings available within the UI apply to MM.
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Sorry for the late reply, been traveling a bit and haven't checked in. ogs, thanks for your comments, and no, nothing has changed on the vinyl front for me (same gear and setup); and still lackluster sound. Still have it set for the default setting for my Ortofon 2M cartridge (RIAA 1976).

So, assuming that the actual input impedance of Devialet's MM input is 14k and cannot be adjusted as indicated in the configurator (and as watchnerd points out) and Ortofon calls for 47k, I have two questions:
1. What impact on sound quality would you expect from this mismatch?
2. Is there some other setting in the Devialet configurator that would be a better match for the 2M cartridge? Is there a specific MC setting that would be a work around since there appears to be no way to adjust the MM setup?