Fixed dimensions of the multi-tier EquaRack as delivered were 43.5" high from the base to the top of the upright support columns; 28" wide from outside edge to outside edge of the same uprights; and 22.75" deep using the same method of measuring. The height of the cross members plus Bearing Mounts comes to exactly 3.25". Figure on roughly 10" clearance for each of the lower three tiers if they were spaced evenly and you went with this height of uprights. Taller or shorter uprights can be custom-ordered at no upcharge.

Think industrial-strength scaffolding or erector set and you get a very accurate idea of the basic construction here and its outstanding stability. The exo skeleton is ultra-rigid, the necessary degrees of freedom-of-motion for resonance isolation provided by the component mounts. Getting rid of shelves is a good idea. Just like speaker cabinet panels, they tend to resonate unless they're fashioned from hi-tech but likely rather expensive materials.

The complete adjustability of moving the mounts to very specific spots underneath the equipment to be supported means you can fine-tune results while also accounting for weight imbalances. With tube amps whose greatest weight traditionally is in the back where the transformers are mounted, you'd move two Bearing or Vector mounts to the rear cross member, one to the front.

One thing with bearing-based solutions is the minor jiggling you instigate whenever pushing a power or other equipment button. Whether with Symposium's RollerBlocks, the similar Darumas or Gingko's clever and affordable Cloud 10 or 11 platforms, innate in freedom-of-motion is a certain amount of give or play that will take a few moments to settle back down after having being set in - well, motion.

The rectangular rather than triangular exo skeleton's geometry means that the back remains open for easy routing of wiring without being obscured by a central rear leg. A 5-level rack with 3 VectorMounts per level and floor spikes weighs in at about 127 lbs - heavy but not unduly so considering.
The BearingMounts are 1.84" in diameter and 2.42" tall. The threaded mount base receives a hard-coated aluminum 7075 alloy disc from which it is decoupled by a visco-elastic at the bottom and a silicon O-ring on the circumference. To minimize cantered play of the 'component foot', a second and external silicon O-ring surrounds the receiving or upward-facing disc. The races above and below the central 1/2" Grade 5 Tungsten Carbide ball are claimed to be an industry-first, e.g. made of Tungsten Carbide and diamond-lapped to a mirror finish of better than 0.000005 micro-inch precision. The superior strength and resistance of Tungsten Carbide to abrasion, galling and fretting as well as a very low dry friction coefficient guarantee that the EquaBearings suffer no weight limitations within their intended application range.

The VectorMounts comprise two anodized aluminum 6061 alloy pyramids with a round profile and concave counter bores at their tips which receive a single and non-moving 3/8" Tungsten Carbide ball for minimum-contact decoupling.

VectorMounts come in the same diameter as the BearingMounts but measure only 2" tall. VectorMounts and Bearing Mounts can be used interchangeably and also used to decouple the rack from the floor. To support monaural amplifiers, EquaRack offers a Solo System comprised of 3.25" diameter spiked aluminum discs with a central threaded hole that receives either BearingMounts or VectorMounts to support equipment directly on the floor while providing the same kind of isolation and damping as the rack proper. A dedicated amp stand and a double-width, multi-tiered Model-DW rack are also available. For details, see their website. All in all, the EquaRack is an extremely sturdy, rigid, fully modular and thus infinitely adjustable equipment support of substantial size, extreme weight rating and a slightly industrial loft-type appearance. Professionally and very carefully packaged, EquaRack offers a 15-day satisfaction/full refund guarantee. Part II of our report will evaluate how EquaRack's performance compares to my resident Grand Prix Audio Monaco rack.

As delivered for this review, the EquaRack Model-A was fully optioned and the very best its designer Joe Ciulla offers. At $6,600, it thus isn't cheap. However, simply substituting the precision BearingMounts with VectorMounts and replacing the optional BearingMounts underneath the rack with Spike Adaptors for standard floor spikes reduces the price to $2,850. VectorMounts go for $110/ea. rather than the $300 each BearingMount demands.