Recently, the Whole-Machine Structural Systems and Dynamics Research Team from Beihang University visited the Aiska Production Base again to conduct on-site validation and modal qualification testing of the DARACK Jinzun Rack following its fourth technical upgrade.

Through modal testing using the impulse hammer method, the modal parameters of all DARACK Jinzun rack models were obtained, specifically including:

1.Natural frequency — in plain terms, the frequency points at which the structure is prone to resonance.

2.Damping ratio — in plain terms, a measure of how quickly structural vibration decays.

3.Mode shape — in plain terms, the deformation pattern of the structure at a specific frequency (i.e., the relative amplitude and phase relationships of vibration at each point).

For this on-site test, the team brought in a complete set of professional vibration testing equipment, including 45 high-precision accelerometers, a full-function data acquisition system, and a standard modal testing force hammer from the China Orient Institute of Noise & Vibration (COINV). Multi-point, multi-condition structural dynamics testing was then conducted on the upgraded DARACK Jinzun rack.

This round of testing serves both as a verification of the third technical upgrade and as the starting point for calibrating the fourth technical upgrade, enabling the DARACK Jinzun rack to make continuous progress at the technical level and move ever closer to perfection, establishing itself as a rack from a renowned technical school in the global HiFi field.

Unlike the subjective listening evaluations commonly used in the HiFi industry, this scientific testing adopts an objective structural dynamics experimental approach to collect key data across the full domain—including the rack's natural frequencies, damping characteristics, and vibration transmission responses—thereby completing the final qualification of the rack's vibration model.

DARACK Jinzun will apply mature precision structural vibration testing methods from the aerospace field to high-end audio support systems, using quantifiable and reproducible measured data to evaluate the rack's vibration absorption, vibration isolation, and resonance suppression performance.

From iterative theoretical simulation to sample fabrication, and then to the on-site testing conducted this time, the DARACK Jinzun rack has continuously optimized the equipment support system at the structural level. It provides the high-end HiFi industry with equipment rack solutions validated through rigorous empirical testing, helping to restore the true essence of music.

A good HiFi rack is not merely a storage shelf in the public perception, but the dynamic cornerstone of the entire audio system. Users interested in the DARACK Jinzun rack are welcome to contact Aiska for a complete set of vibration modal analysis charts for DARACK racks, adding a layer of technical armor to your system.