@pindac
When learning about the Body, it is unique as a Material, which is a Plus, especially as the Material has properties which are recognised for the Damping that can be produced.
My query would be how separated in the attractive properties is the Nagra's EXIUM AM to Titanium or Duralumin. It seems Cart's are available with these materials in use for quite a lesser sum of monies.
Exium is nothing new - I have been using a thin slab of M2052 ( virtually the same high damping copper/manganese/ferris/nickel composite alloy ) under my cartridges since the 80's. Its a bit like launching a new wheel and calling it a twheel ( trademarked of course, which means nothing ).
I can tell you though from hands on experience the use of a high damping alloy from manganese/copper/ferris etc vastly improves cartridge performance compared to aluminium & titanium - removing hash and colourations, lower noise floor.
My whole turntable is built from superplastic zinc alloy ( SPZ ) cast and manufactured in the 70's that sinks all vibration from 10hz to 100hz via internal grain sliding at a molecular level at room temperature - now that's a truly unique material that is unobtainable today.
