I had a high output Ruby, .7 output, and with the JC3. I had an overload problem. While I could use the MM input, I had to run the Ruby unloaded. The JC3 worked fine with a regular Ruby 3, .35 output. I believe the sensitivity of the line stage is also a factor.
The JC3 worked very well for me with MC's in the .2-.4 range. Dead quiet and great sound. Above that, and depending on your line stage, overload could come into play. I'm sure the reduced gain of the JC3+ was designed to make it more compatable with medium output MC's.
The JC3 worked very well for me with MC's in the .2-.4 range. Dead quiet and great sound. Above that, and depending on your line stage, overload could come into play. I'm sure the reduced gain of the JC3+ was designed to make it more compatable with medium output MC's.