For MM cartridge this phono stage is amazing and reasonably priced, not every phono stage will give you the opportunity to change load resistors (rca plugs on the back) and this is superb feature! You can ask Joe (the designer) to add internal resistors of the higher value than 100k (not 47k Ohm by default) and then when you plug-in the lower value to load your MM cartridges you can have the total load at whatever you want, it’s worth to try 30k ohms, 40k ohms, 50k ohms ... 100k ohms to fidn out that is the best for your MM cartridge. This phono stage has MC input too, so you got both in one! The MC stage with high gain designed to run 0.20mV cartridges!
http://www.customanalogue.com/jlti_phono_stage.htm
http://www.customanalogue.com/jlti_phono_stage.htm