Entreq

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

Est. 1999
Sweden
Per-Olof
Founder
Since 2016
Stocked by FutureShop
40+
Products
Fully Passive
No Electronics, No Filtering
Grounding Boxes, Ground Cables, Racks, Isolation
Product Types

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.

4.95/5 from 20,702+ reviews Award Winning Dealer Since 2013 UK Specialist since 2005

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.

36 of 56 products

  • Entreq

    Entreq Athena Bespoke Hi-Fi Rack - Single Base Shelf

    SKU: Entreq Athena

    £491.67
    Ex. VAT
    Athena is the result of more than 8 years development and tests. Entreq's goal was to develop and create a rack that really handle the special demands arround Hi-Fi and AV placement without any limits.
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  • Entreq

    Entreq Max Pa Palladium Ground Post

    SKU: Entreq Max Pa Palladium Ground Post

    £500.00
    Ex. VAT
    The Entreq Max Pa is an upper-tier post in the Entreq Max range, pairing Palladium with the Tungsten base shared across the family. It fits the Corepoint units supplied with every ERS cable and works equally well on Entreq ground boxes. Entreq describe its character as tonally even-handed, with more air, better staging and greater low-level detail retrieval than the reference Max T.
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  • Entreq

    Entreq Eartha Infinity Apollo Ground Earth Cable

    SKU: Infinity Apollo

    From
    £566.67
    Ex. VAT
    The Entreq's Eartha Apollo Ground Earth cable produces a neutral, but very open and detailed on your system.
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  • Entreq

    Entreq Macro Twin Kit - Ground Boxes and Cables (x2)

    SKU: Entreq Macro Twin Kit

    £583.33
    Ex. VAT

    The Entreq Macro Twin Kit is an all-new solution for grounding both of your speakers using the negative outputs on your amplifier (although they can also be used on negative speaker inputs, it is recommended that they are fitted to your amplifier). The spade to banana terminations mean that you can fit them to the negative outputs regardless of whether your speaker cables use spade or banana, as the Macro ground boxes also accept either plug. These grounding cables do not come with click adaptors as they are designed specifically for use with amplifiers or speakers.

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  • Entreq

    Entreq Extreme Apollo Vibbeater Pair

    SKU: Entreq Extreme Apollo Vibeeater

    £583.33
    Ex. VAT
    Vibbeaters transform excess vibration and magnetic interference into harmless heat, enhancing clarity and stability for speakers and electronic equipment. Their unique mineral and copper mix reduces distortion, tightens bass, and expands the soundstage for a more immersive experience. Place them on loudspeakers or components for cleaner treble, deeper textures, and improved flow in your music.
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  • Entreq

    Entreq Primer Core Speaker Cable

    SKU: Primer Core Speaker

    From
    £583.33
    Ex. VAT
    The Entreq Primer Core Speaker Cable is a hand-made speaker cable built around Entreq's Energy Reference System (ERS) and Corepoint technology. Every cable is supplied with two Corepoint Signal units, one per channel, and is available with spade or banana plug terminations. It carries the signal from amplifier to speakers with matched coherence across both channels.
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  • Entreq

    Entreq Primer Core QSA Power Cable

    SKU: Entreq Primer Core Power Cable

    From
    £700.00
    Ex. VAT
    The Entreq Primer Core Power Cable is a hand-made mains power cable built around Entreq's Energy Reference System (ERS) and Corepoint technology. Every cable is supplied with a Corepoint Power unit tuned for high-current applications, and terminates in a custom power plug and IEC connector. It delivers clean, coherent mains power to your components.
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  • Entreq

    Entreq Macro Kit Tungsten Twin Kit - Ground Boxes and Cables

    SKU: Entreq Macro Kit Tungsten Twin Kit - Ground Boxes and Cables

    £716.67
    Ex. VAT
    The Entreq Macro Box Tungsten Twin Kit provides complete negative speaker terminal grounding for a stereo amplifier, using two independent Macro Box Tungsten units, one per channel. Each box drains accumulated electrical noise from its channel into a tungsten-enhanced mineral mix, lowering the noise floor and opening up the soundstage. The kit includes two hand-finished oak ground boxes and two 1.1m Eartha cables, ready to connect.
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  • Entreq

    Entreq Magneus Power EMF Transformer

    SKU: Magneus Power

    (1 reviews)
    £733.33
    Ex. VAT
    Magneus Power enhances audio performance by reshaping electromagnetic fields around power and speaker cables. Using advanced paramagnetic and dielectric materials, it reduces noise and field turbulence without altering the electrical signal. The result is deeper bass, improved tonal density, and a more open, natural soundstage. Place it near IEC inlets, wall plugs, or speaker binding posts to hear your system deliver music with greater presence and control.
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  • Entreq

    Entreq Athena Bespoke Hi-Fi Rack - Double Base Shelf

    SKU: Entreq Athena - Double

    £833.33
    Ex. VAT
    Athena is the result of more than 8 years development and tests. Entreq's goal was to develop and create a rack that really handle the special demands arround Hi-Fi and AV placement without any limits.
    View Available Worldwide Shipping Available
  • Entreq

    Entreq MaxMix T2 EMI Filter Kit for Speakers

    SKU: MaxMix T2 Kit

    £833.33
    Ex. VAT
    The MaxMix T2 improves your audio by reducing vibrations and magnetic interference at speaker terminals. The kit includes Max T ground posts and Mix T2 posts, which lower noise levels and improve signal flow. Experience greater dynamics, deeper bass, and a more immersive soundstage with this simple yet effective upgrade.
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  • Entreq

    Entreq Delphius Digital Signal Cable

    SKU: Entreq Delphius Digital Signal Cable

    From
    £833.33
    Ex. VAT
    The Entreq Delphius Digital Signal Cable is a hand-made Swedish digital interconnect and the first product in Entreq's new cable architecture. Copper and silver conductors run in a cotton dielectric alongside a separately shielded silver Energy Reference System wire, with a Corepoint Signal unit supplied with every cable. It is available in RCA coaxial, XLR AES/EBU, USB and RJ45 network variants, in 1.1m and 1.65m standard lengths.
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Yes. Entreq grounding boxes and cables are designed to reduce electrical noise and improve system balance. Many audiophiles report hearing lower noise floors, tighter bass, and a more natural musical flow. Even entry-level models like the Silver Minimus can make an immediate difference, while larger solutions such as the Olympus Ten deliver even greater benefits for reference-grade systems.

An Entreq grounding box provides a dedicated “earth point” for your hi-fi components. By draining away unwanted noise and interference, it lowers the overall noise floor and allows more musical detail and dynamics to come through. Connecting digital sources, amplifiers or even power distributors to a grounding box often results in a more relaxed, organic sound.

Yes, Entreq grounding boxes work best when paired with their dedicated grounding cables, designed with natural materials and carefully chosen conductors. These cables ensure effective noise dissipation and optimal connection between your equipment and the grounding unit.

Entreq avoids plastic and metal enclosures because they can introduce unwanted resonance. Instead, their products use wood, cotton and mineral-based fillers that naturally damp vibrations. This contributes to the cleaner, more organic sound that Entreq is known for.

For many customers, the Silver Minimus grounding box is the ideal introduction, offering excellent results in smaller systems. Those with higher-end or multi-component setups often step up to models like the Olympus Ten for greater capacity and performance. Entreq also offers Primer Pro cables for those seeking a simple upgrade path at a more accessible price point.

Setting up an Entreq grounding box is straightforward. You connect your chosen component - such as a DAC, amplifier, or power distributor - to the grounding box using an Entreq grounding cable. Multiple devices can be connected, depending on the size of the box. Position the unit on a stable surface, ideally away from power supplies or strong electromagnetic fields, to maximise its performance.

Yes. Entreq products are designed to work with almost any hi-fi or AV brand. Whether you own equipment from Chord Electronics, Naim, Linn, or more mainstream brands, a grounding box can provide audible improvements. Because they are not tied to one manufacturer, Entreq solutions are a flexible way to upgrade any system, regardless of brand mix.

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