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 bond the granite slab to 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), 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.

• Extruded-aluminum vertical struts feature T-Slot fastening system.
• Vertical struts and T-Slots are more robust than those used on competitive units.
• Shelve supports feature infinite height adjustment.
• Aluminum columns available in Black or Silver. Silver column is standard add an extra $20.00 for black.
• Genuine granite shelves, bonded to damping material, eliminate resonant waves.
• Mathematically calculated support points further reduce shelf resonance.
• 19 by 24 platform available for an extra $100.00.
• Super strong one-piece mig-welded tubular steel frame for each shelf.
• Sand or shot fillable for increased damping.
• Shelf attachment points reinforced with 1/4" steel plate.
• Conservatively rated at up to 300 lbs!
• Modular construction, may be expanded vertically or horizontally.
• Assembles in minutes using provided tools.
• Accepts glides, casters or spikes.
• 10 day money back guarantee. Shipping is non-refundable
• UPS shippable.
• List Price: $349.00 (w/ 1 18x18 inch granite shelf)