Four-leg, two-level design. Sandwich-structured shelves finished in Concert Burgundy (high-gloss). Legs finished in black gloss.

The structure allows control of mechanical parameters through precise tuning of load-bearing elements and their internal tension.

Images may also present alternative finish options, illustrating available color and material variations.

The 4RP2/BBS is designed as a compact, mechanically tunable structure, combining high stability with the ability to precisely shape the behavior of the system.

Vibration control and BBS system

Rogoz Audio racks are designed as systems that control the flow of mechanical energy. In the 4RP2/BBS model, the key factor is not only mass and isolation, but also the internal structure of the load-bearing elements.

The solid legs feature a layered structure with varying density, promoting dissipation of vibrational energy and preventing its accumulation within specific frequency ranges.

Steel threaded rods run through the entire height of the structure — including the shelves — binding the system together and enabling precise control of internal tension.

Adjustment of this tension directly affects the mechanical behavior of the structure, allowing it to be tuned according to the rack dimensions and the mass of supported components.

The double shelves (2 × 30 mm) are separated using the proprietary BBS (Balancing Board System), which allows controlled lateral movement of isolated masses while maintaining point support.

As a result, vibration energy is not transferred linearly but dissipated progressively through motion, friction, and internal damping.

Sound performance

In practice, this results in a stable and well-organized sound presentation, good low-frequency control, and high clarity — particularly in compact high-end systems.

Press & Reviews

KONKURS 10/10 SPRZĘT, LUDZIE, WYGRANE

Each instrument and each sound seemed to be finer, more prominent and more polished. All of it sounded more exquisite. Consequently, the scene between the speakers deepened and it was possible to define the apparent sound sources with greater precision. […] The bass became faster and more precise, and the highest tones seemed more polished. In terms of the overall effect, the scene and precision improved.

(High Fidelity, nr 10/10 2014)

TECHNICAL SPECIFICATIONS

• total height – 684 mm
• total width – 1100 mm
• total depth – 560 mm

• leg profile – 165 × 60 mm
• top shelf – 960 × 560 × 30 + 30 mm
• lower shelf – 960 × 490 × 30 + 30 mm
• clearance between shelves – 300 mm

• load capacity per shelf – up to 100 kg (total 200 kg)
• BBS system between shelves

INCLUDED

• 1 rack
• 4 height-adjustable spikes
• BBS system between shelves
• floor protection pads

APPLICATION

• turntables
• CD players and digital sources
• integrated amplifiers
• preamplifiers
• DACs
• audio streamers

CUSTOM CONFIGURATION

Custom configurations are available upon request — including dimensions, layout, and finish options. Each unit can be precisely tailored to match a specific audio system and its operating conditions.

The Balancing Board System

The reference kinematic anti-vibration Balancing Board System BBS (Patent P.404137) is used in the construction of models marked with the abbreviation BBS. The system consists of a threaded, height-adjustable spike made of high-fiber-content steel alloy, on top of which two elements are placed, each with an inner bearing. An intermediary (middle) element is made of carbon fiber and supports another element, a steel bearing inserted into the shelf. Point contact between the steel spike and the carbon intermediary element prevents movement of either element relative to its axis, but it allows pendular motion. Meanwhile, the contact between the intermediary element and the bearing inserted into the shelf allows restricted rolling motion and sliding motion. Consequently, the advantages of spike point support (contact area has been minimized and kinetic energy turns into heat) have been combined with the effects of deadening vibrations owing to to sliding friction and rolling resistance.