Four-leg, three-level design. Sandwich-structured shelves (30 mm) finished in piano black gloss.
The frame is designed for quartz sand filling — threaded openings at the rear of the legs allow adjustment of both the amount and type of ballast.
Images may also present alternative finish options, illustrating available color and material variations.
The 4QB3 is designed as an extended rack for advanced audio systems, offering three independent levels and a stable four-leg structure, ensuring high load capacity and efficient system organization.
Vibration control and mechanical stability
Rogoz Audio racks are designed as systems that control the flow of mechanical energy. In the 4QB3 model, the key elements are mass, structural rigidity, and point-based support.
The structure is tuned through the deliberate combination of different steel types. The frame consists of thick-walled legs made of S235JR carbon steel and crossbars made of high-strength S355 alloy steel.
The sandwich-structured shelves (MDF/HDF/MDF) promote dissipation and damping of vibrational energy rather than its accumulation.
Point support on adjustable anti-vibration spikes reduces the contact area, limiting vibration transfer and enabling controlled energy dissipation.
Quartz sand ballast increases system inertia and introduces additional internal damping. The granular material acts as a mechanical filter, effectively dispersing higher-frequency vibrations and limiting their propagation within the structure.
Each rack is delivered with a factory-optimized ballast filling, with the option for further tuning if required.
Sound performance
In practice, this results in a more natural and stable sound presentation, improved low-frequency control, and greater precision in imaging and instrument separation — especially in multi-component systems.
TECHNICAL SPECIFICATIONS
• total height – 770 mm
• total width – 1090 mm
• total depth – 490 mm
• leg profile – closed section 40 × 40 mm
• top shelf – 1090 × 490 × 30 mm
• inner shelves – 1005 × 450 × 30 mm
• clearance between shelves – 300 mm / 200 mm
• load capacity per shelf – up to 100 kg (total 300 kg)
INCLUDED
• 1 steel frame
• 3 shelves (sandwich construction – MDF / HDF / MDF)
• 16 height-adjustable cones
• 12 isolation discs
• 4 floor protection pads
APPLICATION
• CD players
• turntables
• integrated amplifiers
• preamplifiers
• power amplifiers
• 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.
