About our "Classic"

The past, present and future of audio isolation!

This Adona classic four-shelf audio rack is fully compatable with the rest of the 45 Series. This is a double width version of the rack that earned Adona Corporation a place in the high-end audio arena. It's sonic signature is completely flat throughout the entire audio spectrum. You'll experience incredible focus, life-like sound stage and tight bass response. All without any perceived added coloration. This design has remained unchanged since the first units were sold back in 2001. Many of our customers have been happy to find out that many years later they can still add more shelves to their existing rack, and everything looks the same and fits perfectly.

Many other companies have come and gone in that time or made improvements that make the old stuff obsolete. Not so with our 45-Series racks. It's far from becoming a boat anchor, and it's nice to know that it's so strong and heavy, that you could actually anchor your boat to it!

UPS shippable.

4 shelf, 2x2 Price: $1500.00 Special offer $1400.00
Price includes standard 18x18 platforms.

Upgrade one of more platforms to larger 19x24 size for additional $100.00 per platform. Okay to mix and match sizes.

Your choice of Black or Silver Columns.
Solid brass floor cones are included.
We offer cherry trimmed platforms
$80.00 per shelf for the 18 by 18
$100.00 per shelf for the 19 by 24

Design your own rack rack with our Do it Yourself rack building parts.

Granite is well-known for its ability to maintain precision flatness and has sufficient mass to naturaly resist motion, not to mention its stunning beauty. Natural stone however, will ring like a tuning fork unless certain measures are taken.

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 conduction 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 standard platform size is 18 x 18 inches. This size works well with most components so long as the feet will land within an 18 x 18 inch square. We do offer a 19 x 24 inch platform for an extra $100.00.

The X-Frame:

The shelf support-frame utilizes heavy-gauge steel tubing fully welded at the center point to increase torsional stiffness. We call this the "X-Frame". 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 X-frames are available in your choice a black, silver or gold at no extra charge.

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The Columns:

The support columns, 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.

The support columns are available in the following standard lengths: 6", 9.5" and 12". All are the same price and you may "mix-n-match" as you choose. The 6" columns are recommend for the bottom level, however, they may be used for upper levels if they only need to clear a short component like a preamp. The 9.5" is for most applications. The 12" is for use over a tall component like a large poweramp. You can also customize the height of the columns.

The price of the rack includes silver or black columns.

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The Footers:

The primary function of spiking is to focus the weight of the rack onto an infinitely small surface area, although some floor finishes make the use of such devices impractical. Therefore, we offer optional floor discs, as well as glides and casters.

All racks come standard with either Gold or Black-chrome 1 1/2 inch brass cones. Floor protectors are available separately. Please see ad.

The Caps

Commonly referred to as "end caps" on most racks, these precision machined units serve several functions on the Adona rack. Obviously they add a "finishing touch" to the top of the column, but more importunately they provide a means of coupling (or decoupling) and allow platforms or additional rack layers to be placed above the columns.

We use plain top caps on the top level of all racks. If you would like stackable top caps (we call them receptor caps)on the upper level you may do so for an extra $25.00.

AV45DW4 with optional 19x24 platforms

AV45DW4 with optional 19x24 platforms

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Specifications:

* Load capacity: Conservatively rated 300 pounds per level

* Overall Dimensions: Width 46", Depth 24.5", height 21" this included the cones. (other heights available)

* Platform size: Standard= 18"x18", Optional= 19x24 oversized

* Maximum component size: Lower shelves: 20" wide, 26" deep

* Shelf spacing: Infinite adjustment

* You may purchase additional shelves for an extra $335.00 each.

* 19 x 24 inch platform is available for an extra $100.00

* Access between the columns is 20 inches.

* Cherry trimmed platform are available for $80.00 each for 18 by 18 and $100.00 each for 19 by 24

* 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.

* Genuine granite shelves, bonded to damping material, eliminate resonant waves.

* Mathematically calculated support points further reduce shelf resonance

* Super strong one-piece mig-welded tubular steel frame for each shelf.

* Sand or shot fill-able for increased damping. Although this is not required.

* Shelf attachment points reinforced with 1/4" steel plate

* 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.