Signature Series Audio Racks
Better sonic performance than carbon fiber, polymer, stone, or wood shelves! Guaranteed! Adjustable, expandable, affordable and beautiful!
This Adona classic four-shelf audio rack is fully compatable with the rest of the 45 Series. This is a "buffed-up" 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 over eight 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!
Columns are 30 percent beefier than our already-large standard ones giving this rack the aggressive stance that has become so fashionable these days. Forget those spindly looking columns found on other brands. This rack makes a serious statement:.... Strength! As viewed from the front, the columns are almost 3 1/2 inches wide! So, go get some big Krell amps, a couple of Wilson Grand Slams and show the world that you take your hobby seriously.
List Price: $1560.00
Your choice of Black or Silver columns.
We offer cherry trim platforms.
$75.00 per shelf for the 18 by 18 platforms
$100.00 per shelf for the 19 by 24 platforms
Design your own rack rack with our Do it Yourself rack building parts.
Click photo above to see larger images.
This model has four infinitely adjustable granite shelves each with a slab of 1/2 inch thick stone and incorporates Adona's proprietary anti-resonance technology. Each shelf has a capacity of over 300 pounds. Thats over a half a ton for the whole rack! It is most likely the most rigid rack available anywhere. Each stone slab measures 18" x 18" (upgrade any shelf to a larger 19 x 24 inch platform for an additional $100.00) is black in color and is bonded to a 3/4 inch thick anti-resonant substrate. This prevents the stone from "ringing". The resulting damping effect is equivalent to that of stone several inches thick! The Adona anti-resonant technology is the result of many years of research and development. Our secret is in the way we transfer energy back-and-forth between the different layers of materials. The material mismatch is deliberate and well executed and nulls-out any of the negative effects of each material producing a flat response throughout the entire audio spectrum. Guaranteed! Competitors have tried their own version of this design by substituting other materials between the MDF and granite(or worse yet just plain granite)! And the results are always the same, a compromise in soundstage and a sense of hardness in the upper midrange.
View the Assembly Instructions here.
Add more levels to your rack anytime with our Do it Yourself rack building parts.
Also, please visit our frequently asked questions page for more information.
Our famous Multi-Element Granite Platforms:
The approach is simple and well executed. With just three basic material layers it is easy for us to optimize the performance and eliminate the "muddy" effect that occurs when too many layers are used in a constrained layer system. After all, if you need more than three layers, then you're probably doing something wrong in the first place.
Independent of component weight - whether it's a massive 300 pound amplifier, or a sensitive phono stage, the results are satisfying and predictable! Plus, they are tolerant to a wide range of after-market coupling devices - allowing you to "tweak" your system any way you like it.
Learn more about our Multi-Element Platforms.
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.
Your choice of Black, Silver, or Gold for no extra charge.
These massive 60 mm square columns weigh in at over two pounds per linear foot. They are much stronger than similar-appearing columns used on our competitors products and also use larger fasteners. The precision extruded aluminum columns, borrowed from other industries, are typically used in the manufacture of machinery frames. Aluminum is a good choice for audio racks since it transmits vibration energy quite well down it's longitudinal axis, where it is easily drained by your floor.
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.
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.
Load capacity: Conservatively rated 300 pounds per shelf
Overall Dimensions: Width 25", Depth 25", height 37 1/2" including the cones. (other heights available) Access between the columns is 20 inches.
You may purchase additional shelves for an extra $335.00 each.
19 x 24 inch platform is available for an extra $100.00
Shelf spacing: Infinitely adjustable
* Cherry and maple trimmed platform are available for $75.00 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. Althought this is not necessary.
* 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.