Entreq Tellus 3 Tungsten Tri-Cell Ground Box

Item code: Tellus 3 Tungsten

The Entreq Tellus 3 Tungsten is a high-performance tri-cell ground box designed to eliminate high-frequency noise from your audio system. Featuring a Tungsten-infused mineral mix, it's ideal for grounding up to three components for improved clarity a…
£1,850.00
£1,541.67
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SPEAKER CABLES:

A quantity of 2 means you will receive a pair of speaker cables e.g. for your front left and front right speakers. By entering a quantity of 1, you will get a cable for a single speaker e.g. centre speaker and this option also enables you to vary the length (and termination) of your cable for each speaker.

OTHER CABLES:

A quantity of 1 means you will receive a single cable in the case of aerial, satellite, subwoofer, digital coaxial & optical cables and a pair of cables in the case of 2 rca to 2 rca analogue audio cables.

NON-CABLE PRODUCTS:

A quantity of 1 means you will receive 1 of the specified products.

£1,541.67 ex. VAT
Available — built to order, dispatches in 3 - 5 Days
Delivery: Royal Mail Tracked 24 FREE  ·  DPD Next Day from £8.95  ·  DPD Saturday from £12.95
Order before 4pm (Mon–Fri) for same-day dispatch
Our promise: 30-day returns · Free burn-in · Built in our UK workshop · Lifetime warranty · Expert support on every order

Entreq Tellus 3 Tungsten Tri-Cell Ground Box

 

Improve your hi-fi system’s performance with the Entreq Tellus 3 Tungsten Tri-Cell Ground Box—a premium grounding solution engineered for audiophiles seeking exceptional noise reduction and sonic clarity. This unit features three internal grounding cells, including one equivalent to the Olympus 10 T and two matching the Silver Minimus Tungsten. With its compact, tower-like design, the Tellus 3 Tungsten easily integrates into any setup, offering discrete grounding for up to three components.

The Tellus 3 Tungsten can significantly enhance performance when connected to amplifiers, source components, or power distribution units weighing up to 30kg. Its proprietary Tungsten mineral mix absorbs stray voltages and electromagnetic interference, resulting in a cleaner, more natural soundstage.

Constructed from solid oak, silver, and copper, this grounding box delivers both aesthetic appeal and acoustic benefits. Pair it with Entreq Ertha cables for optimized system integration. Whether you're upgrading from entry-level grounding or refining a high-end system, the Tellus 3 Tungsten ensures high-frequency noise is efficiently drained—unleashing your system’s true sonic potential.

 

Here is what Entreq say about the Tellus 3 Tungsten

The Tellus 3 Tungsten is the successor to our popular Tellus 2 Infinity. This ground box comprises of three internal cells. One cell is equivalent to the Olympus 10 T and the remaining two cells are equivalent to the Silver Minimus Tungsten.

With a form factor similar to that of a tower PC, it’s a versatile unit that is easy to incorporate into any audio system. This is the perfect step on from our entry level range when looking to explore further grounding throughout your system.

This ground box can be connected to three components. It works most effectively when grounding/draining up to 3 units with a total weight of up to 30kg. This box works well with all kinds of electronics weighing between 1-30kg. It also works well for grounding all types of power distribution. This is only a guide and you will find that it will still have a positive effect on larger components.

 

Negative terminal grounding

This box works well for negative terminal grounding on all amps. Please note that grounding the negative speaker post on amplifiers can have a significant impact on your sound quality. We highly recommend doing so, but we also advise you to download our manual or contact us for more information before making any changes.

 

Tungsten Inside

Our range of products bearing the Tungsten Inside mark contain a unique mineral mix that features Tungsten granules. Our research has found this specific material to offer even greater performance when used in our grounding applications.

 

Entreq Guide to Grounding

Ground Box

Something to establish is that Entreq’s use of the term Ground does not directly relate to or mean ‘Primary Earth’ i.e. what you would understand as your ‘Protective Earth’ for your mains electricity. Entreq Ground Boxes are not designed to substitute or replace the protective ground found in your home. The function of the Entreq Ground Box is to present itself as an attractive destination for high frequency noise, stray voltages and the various issues induced by magnetic field effects. This pollution is littered across the system and is always present. Different systems attract, generate and produce different levels and types of noise! This is why Entreq offer a selection of Ground Boxes to suit every system and budget.

Get Connected

You now need to connect your Ground Box to your equipment! Establishing a connection to your hifi system with an Entreq Grounding Box couldn’t be simpler. Entreq make a range of Ground Cables called Ertha Cables that attach to any free and available connection on any product connected to your system. Connections currently catered for include: RCA, XLR, USB, BNC and RJ45. On the other end of the Ertha Cable is a spade termination that attaches to the Ground Box itself. As per the Ground Boxes these Ertha cables come in a range of levels; offering the end user the ability to closely match the right combination of both Ground Box and Ertha Cable to obtain optimal performance. Generally the key component to Ground first is often the product at the centre or hub of your system, whether that is your Pre-amplifier, Integrated amplifier or Dac/pre . Next you should consider a source component; either your CD player / DAC, Streamer, Phono stage etc. Once connected to your system the improvements are usually noticeable within minutes however the grounding process will continue to evolve. After approximately 24 hours you will in most cases have obtained the optimal result. It is not uncommon to hear continual improvements up to and beyond 72 hours!

 

Specification

  • Weight: 9.7 kg
  • Ground Point: 3 (discrete)
  • Dimensions: 185mm x 106mm x 393mm (DxWxH)
  • Effective Mass: 30kg
  • Connections: 2 x Copper Binding Posts, 1 x Silver Binding Post
  • Materials: Oak, Tungsten Mineral Mix, Silver, Copper

 

About Entreq

Founded in 1999 in Sweden, Entreq is a pioneering company that stands out in the audio industry. Unlike many others, they develop, manufacture, and produce their own products, allowing them to maintain a distinctive approach that prioritises performance and avoids imitating other brands or technical solutions. With complete control over every aspect of production, including constructive materials, design, and connective processes, Entreq ensures its products are unique and focused on delivering exceptional results.

Entreq's two-decade journey has been marked by a series of innovations that have revolutionised the audio industry. While renowned for their ground boxes, they have also introduced groundbreaking products such as Audio USB cables, Audio network cables, network switches for Audio, and DC power cables. Other manufacturers have widely adopted these innovations, solidifying Entreq's position as a leader in the field.

At the core of Entreq's philosophy is a commitment to performance above all else. Their founder, a music lover since birth, recognised the importance of optimising sound quality and has prioritised this goal since purchasing his first stereo in 1973. Entreq believes that performance should take precedence over fancy packaging or expensive marketing, as the enduring impact on sound quality truly matters.

Entreq's early focus on ground purification, introduced in 2007 with their groundbreaking product Tellus, set them apart from the competition. While initially met with scepticism, customers soon experienced significant improvements in sound quality, leading to widespread recognition and appreciation for Entreq's theories about ground and the zero point. Today, their ground purification products, including Tellus and Silver Tellus, continue to be regarded as benchmarks in the industry.

Functionality and performance are paramount to Entreq. Their dedication to delivering exceptional audio experiences is evident when you unpack their products. With years of experience and knowledge, Entreq remains ahead of the curve in development, constantly pushing boundaries to create even more efficient power purification solutions.

Choose Entreq for unparalleled audio performance and discover why their innovative approach and unwavering commitment to excellence have transformed the audio industry.

 

About Entreq

Swedish maker of passive grounding boxes and ground cables, intended to lower the noise floor of audio equipment.

Entreq is based in Åstorp, Sweden, and its name stands for Energy Transforming Equipment. Its grounding boxes are passive devices that connect to unused sockets on your equipment, such as RCA, XLR or USB. The catalogue also covers ground cables, power and signal cables, and equipment support products.

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A grounding box connects to a spare socket

A box links to an unused input or output on a component, and needs no power of its own. It does not replace the protective earth on your mains supply. Entreq says the effect develops over several days after you connect it, so judge it after a period of listening, not on the first evening.

Single-cell and multi-cell boxes

Single-cell boxes include the Silver Minimus, Olympus Ten and Olympus Infinity. Multi-cell designs such as Tellus 3 and Silver Tellus put several independent posts in one box, and larger models such as Pluton, TenTen and Hero go further. The Max-T ground post can upgrade a box you already own.

Ground cables come in several conductors

The cable between the box and your component comes in a standard 1.65m length, with copper, Hexa, Revelation, Apollo, Suduko and Olympus conductors and a choice of terminations. Entreq describes the aim as a lower noise floor, with darker backgrounds and greater definition.

Why we stock Entreq

Every system carries noise that has nowhere to go, and conventional earthing does not deal with all of it. Entreq build separate grounding boxes that give it a path away from your electronics. It is an unfamiliar category and we were early to it, because the customers who try it tend to hear what it does.

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Specification

  • Weight: 9.7 kg
  • Ground Point: 3 (discrete)
  • Dimensions: 185mm x 106mm x 393mm (DxWxH)
  • Effective Mass: 30kg
  • Connections: 2 x Copper Binding Posts, 1 x Silver Binding Post
  • Materials: Oak, Tungsten Mineral Mix, Silver, Copper

We use Royal Mail 1st Class services for our Standard Delivery.

Orders received before 4.30 pm Monday to Friday are usually dispatched the same day by FIRST CLASS post (unless premium postal or timed courier services are selected), subject to stock availability. This does not apply to custom-length cables and speaker cables as these require a longer timescale to terminate. This also excludes all cables selected for the burn-in service. Please note, we do not process orders on national holidays in the UK. Over 98% of our orders are delivered the next working day including Saturdays.

 

Standard delivery is usually within 2 working days, although 98% of all orders are delivered the next working day including Saturdays. In extreme cases, such as delivery to the Highlands and Islands, this may take 3 days.

 

All items are fully insured and come with an invoice from Future Shop. We use the Royal Mail for delivery of small packages and DPD Local or DHL for items that weigh over 2KG. Items over 2KG are fully insured and will usually be delivered within 48 hours of placing your order subject to stock availability. For international orders, we use FedEx or DHL services where customers have selected this option.

 

 

Please note, special orders for non-standard cable lengths may be subject to longer deliver time-scales. This may vary from manufacturer to manufacturer.

 

We offer 'Free delivery on orders over £99' subject to the following terms & conditions:

  • Applies only to orders with £99 or more of items (including VAT at the UK rate), at Future Shop
  • Free Delivery on orders over £99 utilises Royal Mail First Class postal service for items weighing under 2KG. For items weighing over 2KG, we use DPD or DHL next working day services which deliver from 9.00am to 6pm within mainland UK (excludes Royal Mail Special Delivery Services and timed next day delivery services by DPD or DHL).
  • Applies only to deliveries to addresses within mainland UK and Northern Ireland addresses. Applies only to orders that are to be delivered to a single Mainland UK delivery address.
  • You will not be eligible for free delivery on your order if any items are cancelled or returned for a refund, bringing the total order amount below £99. Where items are returned, the refund due will be the cost of the item less any postage costs.
  • We reserve the right to change or discontinue 'Free delivery on orders over £99 promotion at any time.
  • FREE DELIVERY FOR ORDERS OVER £99 OFFER DOES NOT APPLY TO TRADE CUSTOMERS.

 

UK Postal & Delivery Charges - FIRST CLASS

Free UK delivery on all orders over £99*

Weight Price (FIRST CLASS UK POSTAGE)
0g - 1000g £3.95
1000g - 1400g £4.95
1400g - 1800g £5.95
1800g - 2000g £6.95
2000g - 3000g £8.95


* Free Delivery on orders over £99 utilises Royal Mail First Class postal service for items weighing under 2KG. For items weighing over 2KG, we use DPD or DHL next working day services which deliver from 9.00am to 6pm within mainland UK.

Free Delivery for orders over £99 excludes Royal Mail Special Delivery Services and timed next day delivery services by DPD or DHL.

 

Special Delivery UK - Guaranteed Next Working Day

We have 99.9% of the UK covered With Royal Mail Next Day Special Delivery. We guarantee delivery to most UK addresses by 1pm the next working day. This includes Northern Ireland, Jersey and Guernsey. Some places take longer to deliver to but we still guarantee delivery within three working days by 5.30 PM.

 

Please note, Royal Mail Special Delivery for next working day may not be possible where non-standard cable lengths are ordered. If this is the case, the item will be shipped via The Royal Mail Special Delivery service as soon as the cable is custom made.

 

For orders weighing over 2KG, we reserve the right to ship items using Next Day Pre-Noon Courier Services where Royal Mail Special Delivery option has been selected.

 

Channel Islands & Northern Ireland

We accept orders from all Channel Islands including Alderney, Jersey, Guernsey and Sark. Unless you select a premium service, Items weighing under 2KG are delivered using our standard UK delivery option above. For items weighing over 2KG, a surcharge may be applied for all deliveries to the Channel Islands as well as Northern Ireland.

 

European Countries

Deliveries to EU member states are not subject to 20% VAT after December 31st 2020 and therefore the 20% VAT on items is automatically deducted when you log-in, register or proceed to place an order.

 

The customer will be liable for the VAT at the local VAT rate, duty on the import and the brokerage service fee if applicable. This may need to be paid in advance to your local Customs & Excise office or the delivery company before your order can be delivered.

 

We offer the following shipping services:

  • Royal Mail First Class International Airmail Services - Items are usually delivered within 3 to 5 working days
  • Royal Mail Standard International Mail Services - Items are usually delivered within 7-10 working days
  • DHL Express International - Items are usually delivered within 24 to 48 hours. DHL orders must be received by 3:30pm for next day service to most destinations in Europe
  • Federal Express International Priority - Items are usually delivered within 24 to 48 hours. FedEx orders must be received by 3.00pm for next day service to most destinations in Europe
  • Federal Express International Economy - Item are usually delivered within 48 to 72 hours

We reserve the right to change your shipping method without notification if you select a method that we cannot use for your shipment (for instance, we cannot ship via postal services for items over 2 Kg to International destinations). If we need to change your shipping method, we will choose the least expensive shipping method for your order.

 

Worldwide - Excluding UK & Europe

Deliveries outside of the UK are not subject to 20% VAT and so the 20% tax on items is automatically deducted when you log-in, register or proceed to place an order.

 

If applicable, the customer will be liable for the taxes at the local tax rate, duty on the import and the brokerage service fee. This may need to be paid in advance to your local Customs & Excise office or the delivery company before your order can be delivered.

 

We offer the following shipping services:

  • Royal Mail First Class International Airmail Services - Items are usually delivered within 7 to 10 working days
  • Royal Mail Standard International Mail Services - Items are usually delivered within 15 working days
  • DHL Express International - Items are usually delivered within 24 to 48 hours. DHL orders must be received by 3:30pm for next day service to most destinations in Europe
  • Federal Express International Priority - Items are usually delivered within 48 hours. FedEx orders must be received by 3.00pm in order to ship items the same day, subject to stock availability
  • Where the actual weight of the package significantly exceeds the shipping cost charged on orders, we may write to you for an additional shipping charge. For larger orders, items may be shipped in multiple packets at our discretion

We reserve the right to change your shipping method without notification if you select a method that we cannot use for your shipment (for instance, we cannot ship via postal services for items over 2 Kg to International destinations). If we need to change your shipping method, we will choose the least expensive shipping method for your order.

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