Granite is well-known for its ability to maintain precision flatness and has sufficient mass
to naturally resist motion, not to mention its stunning beauty. Natural stone however, will ring
like a tuning fork unless certain measures are taken. First we combine the granite slab with a sheet
of medium density fiberboard (MDF) which has excellent anti-resonant properties (that is why
MDF is widely used in the manufacturing of speaker enclosures). The bonding is achieved through the
use of our proprietary anti-resonant material. Our secret is is in the way energy is transmitted back
and forth between the different materials. The material mis-match is deliberate and well executed.
Next, we calculate the best points in which to support the slab such that it tries to oscillate
outside of the stones natural resonant
frequency thus affecting its ability to "ring". The granite is essentialy coupled through the supporting frame
and on to the floor. The result is a "rock solid" and quiet platform for your components.
You'll here the true timbre of the music with no added coloration.
The shelf support-frame utilizes heavy-gauge steel tubing fully welded at the center point to
increase torsional stiffness. The attachment plates are fabricated from 1/4 inch steel plate.
Steel, like granite, rings like a bell unless it is properly damped, so the weight of the
granite rests at points that interfere with the linear resonance of the tube. When filled with
sand (or lead shot), the frame becomes about as sonic as "a stick in the mud" yet it continues
to couple energy toward the floor. Leveling is provided by a 1/4-20 conical set screw and jam
nut at each leg of the support frame.
The support struts, extruded from aluminum, feature full length T-slots or channels. These slots
provide attachment points along the entire length of the strut through the use of a special nut
called a T-nut. This design has been used for many years now in the construction of industrial
furniture and machinery frames. It is strong and versatile.
Floor contact may be made in several ways. The base of each support strut is threaded and will
accept standard feet including heavy-duty casters, glides or spikes. Alternately the feet may be
attached to the threaded inserts on the bottom of the lower shelf frame. The appearance is
different and either approach effectively couples the structure the floor.