I personally would not pay $12K for a cartridge, but I don't think the idea is "beyond stupid".
Davey, The (all tube) Atma-sphere MP1 will work fine with cartridges down to around 0.2mV, with no significant noise penalty, and this is without a SUT. Beyond that, there is more than one hybrid tube/solid state phono stage that will also work well. I modified my own MP1 by converting the input phono voltage gain stage to a solid state/tube hybrid circuit. As a result, I can deal with even an Ortofon MC2000 (.05mV output) with inaudible noise and with quite a bit of headroom (no SUT needed). The MP1 is a fully balanced device, input to output. This provides for quite a bit of noise cancellation. I think it is unwise in this hobby to make sweeping generalizations unless one has actually done the work to support such.
Davey, The (all tube) Atma-sphere MP1 will work fine with cartridges down to around 0.2mV, with no significant noise penalty, and this is without a SUT. Beyond that, there is more than one hybrid tube/solid state phono stage that will also work well. I modified my own MP1 by converting the input phono voltage gain stage to a solid state/tube hybrid circuit. As a result, I can deal with even an Ortofon MC2000 (.05mV output) with inaudible noise and with quite a bit of headroom (no SUT needed). The MP1 is a fully balanced device, input to output. This provides for quite a bit of noise cancellation. I think it is unwise in this hobby to make sweeping generalizations unless one has actually done the work to support such.