KOJO Technology Crystal E-G High-End Ground Box – Champagne Gold (Made in Japan)

The KOJO Technology Crystal E-G Ground Box is a flagship high-end grounding solution designed to dramatically lower noise, enhance clarity, and unlock the full potential of your audio system. Finished in a luxurious champagne gold anodized exterior and crafted in Aomori, Japan, the Crystal E-G takes the original Crystal E concept to an entirely new performance level.

Advanced Hybrid Grounding Architecture

• 8-layer exotic metal plate stack: Multiple heterogeneous metal plates create an advanced grounding effect by leveraging the differing conductive properties of each metal, greatly enhancing noise absorption and stability.
• Special sandblasted & etched surfaces: Fine spray and frosting treatment plus precision etching form a sponge-like conductor structure, yielding an unprecedented total grounding surface area of approximately 68,000 cm²—around 68 times larger than the original Crystal E.
• 6 Crystal EP capacitive modules: Incorporates six banded high-purity aluminum-foil capacitor elements similar to the Crystal EP series, further expanding effective grounding surface and delivering exceptional low-noise performance.

Precision Machining & Premium Construction

• Derived from limited “Crystal E Jtune”: Based on the acclaimed limited edition, with each internal layer more precisely milled for increased conductor surface area and enhanced grounding effect.
• Newly designed screws: Improved venting and mechanical connection contribute to better openness, transparency, and overall sonic purity.
• Compact yet substantial: Small footprint but heavy build (approx. 775–830 g), providing solid mechanical stability on your rack.

Installation & Connectivity

The Crystal E-G is easy to integrate into high-end systems: simply connect one end to an audio component’s ground or chassis, and the other to the E-G to create a powerful virtual ground reference.

• Included ground cables: RCA plug – Y terminal (M4), 1.2 m; Y terminal (M4) – Y terminal (M6), 1.2 m.
• Versatile usage: Suitable for connecting preamps, DACs, CD players, network players, integrated amplifiers, and more to a high-efficiency external ground box.
• Made in Aomori, Japan: Designed and manufactured in Japan for audiophiles seeking state-of-the-art grounding performance.

Specifications

Bring reference-level quiet, space, and transparency to your system with the KOJO Technology Crystal E-G – a compact yet ultra-capable Japanese ground box for serious audiophiles.