Hi rockitman,
I have both the Ortofon A90 and the Koetsu Coralstone (platinum magnet but regular cantilever). My impression is that all coralstones use platinum magnets and the buyer can choose between a regular or a diamond cantilever.
In my system, the Koetsu Coralstone is meatier over the entire frequency range and has this fantastic ability to conjure up the performers in their full presence inside the listening room. This can feel frighteningly realistic. There were several instances when I felt that I was actually watching a live performance.
My favorite setting for the Coralstone is to have the back end of the cartridge very slightly lower than the front and the tracking force I use is 2.4 grams (heavier than the 2.2 maximum recommended by the manufacturer).
I have both the Ortofon A90 and the Koetsu Coralstone (platinum magnet but regular cantilever). My impression is that all coralstones use platinum magnets and the buyer can choose between a regular or a diamond cantilever.
In my system, the Koetsu Coralstone is meatier over the entire frequency range and has this fantastic ability to conjure up the performers in their full presence inside the listening room. This can feel frighteningly realistic. There were several instances when I felt that I was actually watching a live performance.
My favorite setting for the Coralstone is to have the back end of the cartridge very slightly lower than the front and the tracking force I use is 2.4 grams (heavier than the 2.2 maximum recommended by the manufacturer).