If you can spring for about $250 - $300 the K&K Audio MC step up is a great deal. It uses Lundahl transformers, can be configured for a boost of 14, 20 or 26db of gain (factory preset, but if you're good at soldering you can change it yourself), and allows you to plug in different resistor values to set the loading without soldering. I am using one with a Hagerman Trumpet and so far the results have been great. I plugged in Audio Note 47k resistors and combined with the 47k at the MM phono stage gives me 940k ohms loading on my Benz M2.
It needs about 100 hours of burn-in and you could accomplish this easily by hooking up the output cables of the K&K to the outputs of a CDP and play a disc on repeat for a few days. Give Kevin Carter a call if this is in your budget.
It needs about 100 hours of burn-in and you could accomplish this easily by hooking up the output cables of the K&K to the outputs of a CDP and play a disc on repeat for a few days. Give Kevin Carter a call if this is in your budget.