Phono Stage Question

While speaking with a fellow Audiogoner, the topic of how the capacitance "figure" is used mainly on MM/MI cartridges was brought up. This is where a change on the capacitance loading value affects the frequency response, especially on the high frequencies.

I was told that if my cartridge is a MC then I do not have to worry about this issue. However, if I own an MM/MI, then I need to have a phono stage that permits capacitance value changes.

I recently switched to an Ortofon Black, which is a 5mV output MM cartridge on my Music Hall MMF-7 TT. I am currently trying to break it in, and will be checking for proper VTA, etc. as hours are accumulated on this cartridge. I currently have this directly routed to a Rogue Audio Cronus Magnum integrated amp with an internal phono stage. When I switched cartridges to the higher output MM cartridge (as directed), I immediately started noticing distortion in the higher frequencies. Again, I now realize there will be a break in period and possible adjustments on the new cartridge, but my question goes beyond this area.

My question is this: Other than the EAR 324 at $5K, are there any other less expensive good phono stages that permit capacitance value changes (pF adjustments), all in an effort to limit distortion on MM/MI cartridges as I move forward?

Thanks for the help!