Excuse my ignorance, but I did'nt think there were great differences in Wt, compliance etc, between the Koetsu's. The distinction is sound and output, basically .47mvish, against.27mvish for the platinum. The latter had more detail and neutrality across the frequency range. I am also agnostic about body composition, having heard the Onyx and using the Rosewood Signature, I can't hear great difference. If I was paying more it would be for platinum coils, not expensive body materials.
Best Koetsu for SME V
I have a SME V with a Benz Ruby 2. I want to jump into the Koetsu club. What would be the best Koetsu to match the SME V. Some say that the "stone" ones (Jade-Onyx) would be too heavy for the V although there is now a new SME specially design weight to accomodate the heaviest cartridges like the Clearaudio Goldfinger at 16g. Anyway, any thoughts much appreciated. Anything Urushi and above. Gain is not an issue. I can go as low as .1mv