AQ Noise-Stopper Caps fit over unused RJ45 inputs or outputs, preventing RFI and EMI noise from entering the active circuit. Noise-Stopper Caps also protect against dust and corrosion.

Fog Lifters significantly reduce RF coupling, whether with the floor, or due to misdirected efforts to isolate cable with stands or clamps that themselves have too much mass and are sources of RF Noise. A few inches or centimeters might not seem important, but as with light coming from a bulb, the energy falls off exponentially. A few inches or centimeters makes a big difference—which translates into a lower noise-floor and less compromise to, and distortion in, attached active circuits.

HIFISTAY's Soft Jelly uses the same circular pendulum motion as the TetraBase 80 Swing, but expanded to a quadruple layer instead of a triple layer for a vibration-sensitive source device. Thanks to this, 'Soft Jelly', as the product name suggests, helps to maximize the device's original performance through flexible movements like jelly.

HIFISTAY's Trinia +α shows a higher level of performance by adding +α to the existing Trinia model and improving the lower vibration layer and internal material change. The Hardpoint has been designed from the ground up to function as a state-of-the-art anti-vibration device. The term 'hard point' is derived from automotive engineering, meaning the best design for optimizing the movement of the suspension.

HIFISTAY's Dharma is a stabilizer, damper, pedestal, and resonator item that gained popularity in Korea with various functions and excellent sound quality. This Dharma is a sequel to 'Klaud Nain', inheriting various functions and performance, increasing the number of STS balls to 5200 to further reinforce the effect of the resonator, and applying the newly developed Swing Technology to the lower pedestal to improve the vibration damping ability.

HIFISTAY's Ballerino Speaker Isolation features three versions of isolation, the first being 'Single Swing' which consists of one horizontal layer of HIFISTAY's proprietary spherical pendulum swing technology. The Ballerino Single Swing is suitable for smaller and less weighted bookshelf speakers. The 45 Single Swing supports speakers up to 20kg per foot, altough it is recommended for 7.5kg per foot. The 60 Single Swing supports up to 40kg per foot, altough it is recommended for 15kg per foot. Due to the mechanical nature of the Ballerino series isolation, the recommended weight per foot is less than half of the maximum supported weight to effictively function as intended without putting excess strain on each individual component that makes up the Ballerino.