I don't think 0.4mV is all that low to begin with. It's the same output as a Denon DL-301 and people hook them up to all sorts of phono stages with impunity.
Why let your phono stage hamstring your cartridge choice? Get something like a Musical Surroundings Phonomena which has gain settings up to 60 dB and use any cartridge you want. I got a used Phonomena II (there is a newer version, the II+ available) for less than $300. That won't bite into your cartridge budget too much. Or as was suggested a step up transformer (look at Rothwell for information). SUTs have enthusiastic fans, as well as an equally vocal opposition. I've never heard one, so I feel very strongly both ways. ;^)
You could always buy the Benz low and if you don't like the sound you've got those two options to turn to. You might even ask to audition the Benz low with several phono stage candidates at the dealer.
JimBob
Why let your phono stage hamstring your cartridge choice? Get something like a Musical Surroundings Phonomena which has gain settings up to 60 dB and use any cartridge you want. I got a used Phonomena II (there is a newer version, the II+ available) for less than $300. That won't bite into your cartridge budget too much. Or as was suggested a step up transformer (look at Rothwell for information). SUTs have enthusiastic fans, as well as an equally vocal opposition. I've never heard one, so I feel very strongly both ways. ;^)
You could always buy the Benz low and if you don't like the sound you've got those two options to turn to. You might even ask to audition the Benz low with several phono stage candidates at the dealer.
JimBob