this is the google translation:
Keel Alternative Self-development.
Building on the Keel subchassis part of the 1/4 was designed higher, so 16mm instead of 12mm, to increase rigidity further.
For the installation, it is necessary that the lower connecting plate is rotated, to allow free vibration. This has, in my experience no negative impact sound, so the idea ... Mass and center of gravity are identical, to the cut-outs in the ceiling of Subschassis area.
The surface is slightly roughened.
The mathematics of the Keel is very complex, so I've kept very small changes. Mathematician or Ings with recessed Kennstnissen in matrix algebra can help by solving certain problems still to further development of the project.
This sub represents the state of development clear here is that, as always, nothing is arbitrary unwinding of Klungkung with Linn and misunderstood copy as little help as tinkering, in the hope that most of it is probably arbitrary, and stability is the decisive criterion.
Never before offered, unique, on ebay!