Mike, it's hard to say with certainty what output level from the cartridge will be enough. There are other factors, such as the amp input sensitivity level, that could play into this equation.
The problem with trying a cartidge that is on the low end of possiblity for your phono stage, is that if it is not quite enough, you're out of luck. If the cartridge is a little too high, you can always pick a lower setting of gain on the phono stage, or just don't turn up the volume as much.
I think if you want to use the Shelter, you'll need an additional 15db of gain, over what you presently have.
The problem with trying a cartidge that is on the low end of possiblity for your phono stage, is that if it is not quite enough, you're out of luck. If the cartridge is a little too high, you can always pick a lower setting of gain on the phono stage, or just don't turn up the volume as much.
I think if you want to use the Shelter, you'll need an additional 15db of gain, over what you presently have.