Also there are two Graham armboard options for the Clearaudio. There's the Graham version (machined out of metal and made by Graham --- has a Graham logo on it) and the Clearaudio version which is acrylic... and rather cheesy.
I have the Graham version and it is machined with a recess for the mounting plate of the arm. In other words, if the base of the triplanar is larger than the Graham then you'll have some serious trouble mounting it to the Graham board.
I'm not sure if the clearaudio board mounts the arm in a recess or not.
In any case, the clearaudio boards custom cut and drilled aren't too expensive... a few hundred dollars if I recall correctly.
I have the Graham version and it is machined with a recess for the mounting plate of the arm. In other words, if the base of the triplanar is larger than the Graham then you'll have some serious trouble mounting it to the Graham board.
I'm not sure if the clearaudio board mounts the arm in a recess or not.
In any case, the clearaudio boards custom cut and drilled aren't too expensive... a few hundred dollars if I recall correctly.