Entreq
Swedish maker specialising in grounding. Entreq build passive boxes filled with mineral and metal compounds that give stray noise on a component's chassis somewhere to go, rather than filtering the mains.
About Entreq
Quick Access
What Entreq mean by grounding, and why it is not mains conditioning
Entreq work on a problem most of the industry addresses from a different direction. Mains conditioners clean the electricity going into a component. Entreq's ground boxes do nothing to the mains at all. They give noise that has already accumulated on a chassis a path away from the signal circuitry.
The boxes are passive and contain no electronics. They are filled with a mix of minerals and metals that Entreq will not fully specify, connected to a component's earth or chassis point by a dedicated cable. There is no filtering, no active circuit and nothing in the signal path, so there is nothing in the chain that can add distortion of its own. It remains a system-dependent product: some components respond far more than others, and a ground box is not a substitute for a mains protective earth.
That is worth saying plainly, because grounding is an area where scepticism is reasonable and Entreq attract more of it than most. It is a product best judged in your own system rather than argued about in the abstract.
Per-Olof Friberg founded the company in Sweden and still owns it. He spent more than thirty-five years as a farmer before releasing the first Tellus ground box in 2007, and says that work is where his thinking came from. Alongside grounding, Entreq make cables, racks, passive mains conditioners and isolation products, all using the same materials thinking.
Browse by Range
The grounding boxes climb from Primer through Silver Tellus to Olympus and the larger reference units. Ground cables are sold separately and matched to the box, so check the pairing before ordering.
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£316.67Ex. VATThe Entreq Primer Hexa RCA Cable, introduced in the Autumn of 2023, represents Entreq's entry-level range at a price point below their previous starting range, the Primer Pro. This cable offers a substantial amount of Primer Pro performance at a more affordable price, making Entreq's renowned performance accessible to budget-conscious customers or those with modest equipment.
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£316.67Ex. VATMagneus Signal is a semi-passive electromagnetic field transformer that reduces interference in audio systems by shaping the field environment around cables. Suitable for network, USB, HDMI, and analogue connections, it enhances clarity, focus, and tonal purity without altering the signal. Designed from Entreq’s research into electromagnetic behavior, it helps music sound more natural and engaging while improving spatial stability and reducing fatigue. Perfect for use across digital and analogue signal paths.
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£333.33Ex. VATThe Entreq Max T Enhanced Ground Post is a revolutionary upgrade for any Entreq ground box, designed to significantly enhance performance, even in older models. By incorporating a unique mix of dia-, para-, and ferromagnetic metals, Max T transforms the entire grounding system, delivering improved sound depth, speed, and clarity. Compatible with all Entreq groundboxes, it optimizes audio performance to match the acclaimed Olympus Tungsten series.
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£333.33Ex. VATThe Entreq Max S Tuss Kit is a grounding accessory kit that connects the Entreq Max S post to your system through a spare RCA input. The kit pairs the Max S with two Tuss adapters, one copper based and one silver based, each housed in a waxed oak barrel with a male RCA termination. Together they reduce EMI and RFI for improved tonal balance and finer musical detail. -
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Entreq Primer Infinity USB Cable w/ Ground Box - Special Offer - Black November DealSKU: Entreq Primer Infinity USB Cable
(1 reviews)From£374.96 £533.33Ex. VAT ✓ Save £158.38The Primer Infinity USB is Entreq's entry-level cable, but has all the qualities in sound from Entreq's first USB cable Discover. All in one package, so it is just for you to plug and play.
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Entreq
Entreq Max Ti Tungesten and Titanium Ground PostSKU: Entreq Max Ti Tungesten and Titanium Ground Post
£375.00Ex. VATThe Entreq Max Ti is a reference point post that screws onto a Corepoint Signal or Corepoint Power unit, ground box, or Tuss Kit, replacing the standard cap. Building on the tungsten foundation running through the Max range, it adds titanium as its signature material, shifting the balance of energy away from the low frequencies towards the midrange and top end for a more controlled, composed presentation. -
Entreq
Entreq Macro Kit Tungsten - Ground Box and CableSKU: Entreq Macro Kit Tungsten - Ground Box and Cable
£383.33Ex. VATThe Entreq Macro Box Tungsten Kit is a complete single-component grounding solution for a source or amplifier, now built with Entreq's Tungsten Inside technology. It draws accumulated electrical noise out of the connected component and into its mineral-filled cell, lowering the noise floor for a clearer, more natural sound. The kit includes a hand-finished oak ground box, a 1.1m Eartha cable and an RCA click-on adaptor, ready to use straight away. -
From£400.00Ex. VATThe Primer Hexa range, launched in the summer of 2023, introduces a new design that does not require a ground box, offering excellent value for money. With a redesigned entry-level cable, the Primer Hexa is the perfect starting point to explore Entreq's renowned even-handed and well-balanced sound signature, setting the stage for an immersive and fatigue-free listening experience.
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£480.00Inc. VATThe Entreq Primer Hexa XLR Cable, introduced in the Autumn of 2023, represents Entreq's entry-level range at a price point below their previous starting range, the Primer Pro. This cable offers a substantial amount of Primer Pro performance at a more affordable price, making Entreq's renowned performance accessible to budget-conscious customers or those with modest equipment.
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£450.00Ex. VATThe Max T Tuss Kit lets you connect Max T directly to your audio components via RCA, unlocking greater energy, drive, and detail. Including the Max T and two Tuss adapters (Copper and Silver), it reduces EMI and RFI for cleaner, more dynamic sound. Designed for easy integration, it offers a straightforward way to experience Max T’s powerful influence and elevate your listening experience. -
£450.00Ex. VATThe Entreq Max Mo is a passive post from the Entreq Max range that adds Molybdenum to the Tungsten foundation shared across the family. A refractory transition metal prized for its stability, conductivity and strength, Molybdenum gives the post a firmness of grip and cleanness of line. Entreq describe it as the Max T's tonal character presented with more precision. -
Entreq
Entreq Primer Core RCA and XLR Analogue Signal CableSKU: Primer Core RCA and XLR Analogue Signal Cable
From£450.00Ex. VATThe Entreq Primer Core Analogue Signal Cable is a hand-made analogue interconnect built around Entreq's Energy Reference System (ERS) and Corepoint technology. Every cable is supplied with a Corepoint Signal unit and is available with RCA or XLR terminations. It is the entry point to Entreq's new cable architecture, carrying analogue signal between components cleanly and coherently.
