New 55,000 Euro tonearm

@dover, that is quite a caustic response. You might want to tone it down a little.  

@larryi , you are absolutely correct. Carbon fiber can be very misleading and tubes that look massive may not be massive at all. On the other hand thin walls resonate more so they have to be thick enough to prevent resonance. Metal is a lot easier to eyeball and the horizontal bearing carrier is pretty massive and still effects the inertia of the arm to a significant degree. I think if you compare it to say a Schroder CB you will not have any difficulty telling which arm has a lower effective mass and less inertia. Judging buy the cartridges I see used in the SAT arm it is at the higher end of the medium mass group. I agree that not publishing the effective mass is a problem.

The SAT arm tube itself is a similar mass as a conventional arm tube from aluminium. 

Basically carbon fibre is lighter than aluminium.

SAT have used this attribute by using a larger and thicker cf arm tube that significantly reduces unwanted resonances compared to an aluminium arm tube of the same mass. 

This from their mouth.

However still doesn't tell us the effective mass.

Some of us just know stuff already. 

Sure - if you use Wikipaedia for your knowledge base.

i did start a thread on What's Best Forum on my Primary Control FCL field coil loaded tone arm if anyone is interested. here;

https://www.whatsbestforum.com/threads/primary-control-fcl-12-field-coil-loaded-unipivot-tone-arm.35126/#post-807799

@mikelavigne 

Early days, but how does it compare to the Durand Tosca - particularly in terms of transparency and overall balance.