I have posted a message about my 3D arm, but it hasn't yet been published. It is quite long and maybe the powers that be are checking my facts...anyway....if you are about to buy a 3D....WAIT....read my post when it gets published. Right now, the cables are breaking in. I will tell you the sound is a definite upgrade to the 10inch metal VPI. I haven't heard the new TriPlanar, but can tell you that there is magic in the 3D.