I owned the Groove. It is very good in many areas but its lack of flexibility is a major drawback. You can't adapt it to other cartridges without sending it back to the factory. Also at its price point it can be bettered and for a little more significantly surpassed.
I don't know much about the ZYX artisan but I am in heaven w. my WNA audio preamp. You already have one of the worlds great phono stages.
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