Wizzzard, I’d recommend a higher effective mass tonearm to get the very best out of your Koetsu, no matter what the magnet is made of. I’ve owned my Urushi for 14 years; it got better and better as I moved it into progressively higher mass tonearms over the years. Started in a Triplanar. Currently in an FR64S with 18g Ortofon LH9000 headshell. (Stylus only was replaced along the way by Expert Stylus Repair in UK.)
