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Entreq Poseidon Ground Box We have for sale an Entreq Poseidon Ground Box This is pre-owned, one owner from new Originally supplied by myself Supplied in original packaging, excellent condition, very well looked after. RRP of the Poseidon was 3000 The Poseidon has 3 ground posts on the rear which are completely independent to one another. Each post is equivalent to an Olympus Minimus (which sold for 1800 each). The Poseidon is an incredibly powerful and capable box and because the 3 ground posts are isolated from another it is incredibly flexible with how it can be used in a system. O... read more
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Entreq, a Swedish hi-fi innovator, traces its roots to 1999 when founder Per-Olof Friberg—a former farmer with a deep passion for music—began crafting solutions to elevate audio purity. From his rural background, Friberg evolved into a specialist designer, blending natural materials and audio alchemy to pioneer noise reduction techniques. Handmade at their Swedish facility since 2002, the brand embodies a commitment to uncompromised performance, drawing on two decades of boundary-pushing development.
The company focuses on niche accessories that transform energy in audio systems, slashing noise floors for more natural sound reproduction. Entreq is renowned for groundbreaking ground boxes, the original audio USB and network cables, DC power solutions, and specialized switches—innovations now emulated by others. Absent from mainstream categories like amplifiers or speakers, their lineup targets system optimization through unique connective processes and materials.
Positioned as a high-end boutique force, Entreq commands respect among discerning audiophiles for its distinctive, performance-driven ethos. Skepticism once greeted their grounding principles, but widespread adoption affirms their elite status in the ultra-premium market, where every component prioritizes unforced musical flow over convention.
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