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QED XT40i Jumper Cables (1 Pair)
£29.99 £24.99
SKU
XT40i Jumper
Lifetime
New
24 hours
XT40i's complimentary jumper cables offer a solid replacement to the standard metal plates/jumpers that come bundled with your speakers. By utilising jumpers of the same quality/construction as your speaker cable, you can improve the overall performance, dynamic range and sound staging of your hi-fi system.
QED XT40i Jumper Cables (1 Pair)
XT40i's complimentary jumper cables offer a solid replacement to the standard metal plates/jumpers that come bundled with your speakers. By utilising jumpers of the same quality/construction as your speaker cable, you can improve the overall performance, dynamic range and sound staging of your hi-fi system.
As befits a company rapidly closing in on its fifth decade at the forefront of speaker cable design, QED’s brand new XT40i speaker cable builds on the formidable reputation of the XT40 cable it replaces and offers a decisive step up in sound quality.
This pure oxygen-free copper cable uses an evolution of QED’s established X-Tube technology to guarantee superb timing and stereo imaging, and adds the brand new and highly innovative Air Gap dielectric to bring unheard-of rhythmic accuracy and musicality to a cable of this modest price. Very low DC resistance adds unrivalled frequency response to XT40i’s already potent audio capability. The result is a cable that advances on the class-leading standards set by its predecessor.
Air Gap Dielectric
By increasing the separation of the conductors inside the cable, and therefore the amount of air between them, QED has created a low-loss Air Gap dielectric. This technology halves the dissipation and capacitance characteristics of the cable, and results in numerous audible improvements - particularly where timing and rhythmic accuracy are concerned. Despite this increased separation, though, XT40i retains the sort of cross-sectional area that makes it ideal for long cable runs.
Large Cross-Sectional Area
The 4mm2 cross sectional area means XT40 exhibits very low resistance, allowing amplifiers to exert outstanding control over the speakers they are driving. In addition, its large cross sectional area makes it suitable for long cable runs.
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X-Tube™ TechnologyAt low frequencies both X-Tube™ and conventional stranded/solid core speaker cables convey signals in a linear way. However, at high frequencies, X-TubeTM retains a near-linear signal transfer, whereas the conventional cables fail to conduct uniformly across the entire conductor area. In standard speaker cables at high frequencies current flow is highest at the periphery with rapidly deteriorating current density towards the centre of the conductor. The effect of this is to reduce the actual cross sectional area of the cable at 15kHz to less than 75% of that at low frequencies. This results in higher distortion and compromises the performance of the cable. X-TubeTM with polycore technology exhibits much lower self-inductance and is therefore less affected by this problem. The polycore technology reduces loop inductance to levels only achievable using more costly and difficult to terminate cables. The result is more high frequency detail, less distortion and greater performance. |
Specification :
- Length : 0.2m
- Wire gauge - 12 AWG
- Jacket Outer Diameter - 14mm x 6mm (W x D)
- Cross-sectional area - 4.00mm²
- Loop resistance - 8.0 mΩ/m
- Capacitance - 35pF/m
- Inductance - 0.57 µH/m
- Dissipation factor @ 10KHz - 0.0295
- Nominal outside diameter 6.0 mm
- Lifetime Guarantee
- Usually pre-burnt-in with Nordost Vidar for 96 Hours
Termination
This cable is custom-made according to customers specific requirements as selected by the various dropdown options above and is professionally terminated by Futureshop's expert engineers using QED's superb 24 Carat gold plated AIRLOC termination plugs.
AIRLOC is QED's specialised loudspeaker termination method and offers the very best termination with QED speaker cables. This is a solder-free, airtight fusion between the cable and plug offering optimum signal transfer, excellent signal quality and perfect long-term performance.
QED’s AIRLOC FORTE metal banana and spade plugs deliver a superior performance over many plugs offered by rival manufacturers for the following reasons. Firstly, the plug is crimped around the conductors under high pressure using a special tool supplied by QED. No soldering is used and as a result the conductors are in contact with the plug 360 degrees which maximises the surface area contact. Furthermore, the banana plug itself is in contact with the binding post again at 360 degrees. The net effect of this is it maximises the signal transfer from the plug into your equipment and hence a superior performance. When bare wire is used not all the conductors are in contact with the binding post and as a result some loss occurs.
Unfortunately the metal barrels for the AIRLOC spades were discontinued in 2012 however we still use genuine QED’s AIRLOC spade plugs with genuine QED heat shrinks over the spade plugs. This ensures every QED speaker cable comes fully terminated with the best of QED's engineering.
How to Order
From the dropdown menus' above, simply select the length of cable, the type of plugs required at the ‘Amplifier end’ and ‘Speaker end’, the amount of burn-in time required and click on the 'Add to Basket' button to add the item to your basket. Your cable will be dispatched as soon as it has been made by Future Shop's or the manufacturer’s engineers and has completed the specified burn-in process (if any), subject to Future Shop’s Terms & Conditions and stock availability. Please note, this cable is pre-bunrt in for 96 hours.
About QED Cables 
QED is an award winning British company with over 40 years of experience in the audio-visual connectivity industry.
In 1973 Bob Abraham and Ian Vine founded QED Audio Products and changed the way people think about hi-fi cables. By the time QED 79 strand speaker cable was launched in 1978, it wasn’t looked upon as ‘just another speaker cable’ but was instead regarded as a serious hi-fi component, making a fundamental change in the way people thought about cables.
QED's reputation for innovation and technical excellence is known throughout the world. The latest computer-aided design techniques allow their research and development team to keep pace with technological advances and deliver products that achieve the highest levels of performance and reliability. This is why QED products are recommended by so many of the world’s leading hi-fi and home theatre equipment manufacturers.
QED offer a range of connectivity products spanning from both consumer and installation cables, wireless products and switching devices to satisfy every audio visual need.
QED is Europe's number one award winning connectivity brand and has won more prestigious cable awards from ‘What Hi-Fi? Sound & Vision’ magazine than any other brand (Awards 1981–2013).
Specification :
- Length : 0.2m
- Wire gauge - 12 AWG
- Jacket Outer Diameter - 12.50mm x 6.00mm (W x D)
- Cross-sectional area - 4.00mm²
- Loop resistance - 0.008 Ω/m
- Capacitance - 59pF/m
- Inductance - 0.46 µH/m
- Dissipation factor - 0.0576
- Nominal outside diameter 6.0 mm
- Lifetime Guarantee
UK Delivery
1. We use Royal Mail 1st Class Services as a Standard Postage Option
Orders received before 4.30pm Monday to Friday (excluding Bank Holidays) are usually dispatched the same day by FIRST CLASS post (unless premium postal or timed courier services are selected), subject to stock availability. Over 98% of our orders are usually delivered the next working day including Saturdays.
Standard delivery is usually within 2-3 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 Futureshop.co.uk. We use the Royal Mail for delivery of small packages and DPD or Interlink Express for items that weigh over 2KG. Items over 2KG are fully insured and will usually be delivered within 48 hours of placing your order Monday to Friday subject to stock availability. For International orders, we use FedEx Services where customers have selected this option.
Please note, special orders for non-standard cable lengths or custom-made cables may be subject to longer delivery time-scales. This may vary from manufacturer to manufacturer.
We offer 'Free UK 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 FutureShop.co.uk
- 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 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 UK Mail).
- 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.
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 Interlink Express 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 Interlink Express.
2. 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.
For the Next Day Special Delivery service, orders must be received by futureshop.co.uk by 4.30pm weekdays. Orders after the 4.30pm deadline cannot be guaranteed for same day dispatch.
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.
3. 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 subject to 20% VAT. We offer the following shipping services:
- Royal Mail First Class International Untracked Airmail Services - Items are usually delivered within 10 working days.
- Royal Mail First Class International Tracked Airmail Services - Items are usually delivered within 3 to 7 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
Worldwide - Excluding UK & Europe
Deliveries outside of the EU are not subject to 20% VAT and so the 20% tax on items is automatically deducted when you login or register.
We offer the following shipping services:
- Royal Mail First Class International Untracked Airmail Services - Items are usually delivered within 15 working days.
- Royal Mail First Class International Tracked Airmail - Items are usually delivered within 10-15 working days.
- DHL Express International - Items are usually delivered within 48 hours. DHL orders must be received by 3:30pm in order to ship items the same day, subject to stock availability.
- 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.
Enhance Your Experience: Free Cable Burn-In Service with Nordost VIDAR Machine
Please take note of the following details regarding our cable burn-in service:
- Cable Compatibility: We regret to inform you that we cannot burn-in cables with stripped bare ends or BFA plugs. In order for cables to undergo the burn-in process, they should be terminated or have connectors.
- Timing: Cables will be burnt in for the selected period after processing your order. For custom-length cables, the burn-in process will occur after they have been terminated by the manufacturer or our engineers unless specified otherwise in the product description.
- Availability: Future Shop provides our cable burn-in service free of charge, but its availability is at our discretion. While we strive to fulfil all burn-in requests for the specified time periods, please understand that during exceptionally busy periods, we may be unable to meet the demand due to limited connections on the Nordost Vidar cable conditioning machines.
The Nordost VIDAR cable burn-in machine integrates three key functions into one operation:
- Charge Neutralisation: It eliminates charges that accumulate around the cables and their insulation, ensuring a more balanced electrical environment.
- Deep Conditioning: The machine provides a wide band and deep conditioning process that affects the conductor core, resulting in changes to the signal transmission through the metal. This deep conditioning enhances the cable's performance.
- Ultrasonic Surface Conditioning: The VIDAR machine utilizes ultrasonic waves to condition the surface of the conductors, optimizing their contact and overall conductivity.
The VIDAR employs a proprietary combination of composite and complex signals to condition the cables. These signals comprise ultra-low and ultra-high frequencies, extending beyond the range of video frequencies. The signal moves back and forth along the cable, penetrating deep into the core with ultra-low frequencies and traversing the surface with ultra-high frequencies. This transmission method generates beat harmonics between the two complex waveforms, which permeate all layers of the cable. The circuitry of the VIDAR also drives electrons from the conductor into the insulation area, neutralizing electrical charges.
So, what does this all mean for you?
The ultimate outcome of conditioning cables with the Nordost VIDAR is improved sound staging, increased detail, and an overall more musical presentation in your audio system.
Now, you may wonder why cable burn-in is necessary. During cable manufacturing, gasses become trapped as insulation is applied over the conductors. Additionally, new cables often possess high electrical charges, resulting in a brittle and bright sound that lacks the desired detail and depth for music production.
When cables undergo burn-in, the trapped gasses are dissipated, and small impurities in the conductor metals begin to exhibit diode-like behaviour, favouring current flow in a specific direction.
Here are the physical effects of the burn-in process:
- Charge Neutralisation: The burn-in process neutralizes charges in the conductors and insulation, promoting a more balanced electrical environment.
- Wide Bandwidth Frequencies: The conditioning affects how signals pass through the metal, enabling a wider range of frequencies to penetrate all cable layers.
- Signal Transmission: The burn-in process establishes the directionality of the cable, optimizing signal transmission from one end to the other.
When cables are properly burnt in, you can expect the following audible changes in your audio system:
- Fuller and Natural Sound: Your system should be capable of producing a more immersive and realistic performance with a fuller and more natural sound.
- Increased Detail: You may notice enhanced details and nuances in the music, allowing you to perceive subtle elements that were previously hidden.
- Improved Soundstage: The dimensionality of your system's soundstage can be greatly improved, creating a more spacious and immersive listening experience.
At Future Shop, our goal is to maximise your satisfaction. That's why we offer a free burn-in service on all our cables before they arrive at your door, enabling you to sit back and enjoy the benefits of properly conditioned cables in your audio system.
READ MORE ABOUT THE NORDOST VIDAR CABLE TREATMENT
Customer Reviews
5 /5.0 of 8 Reviews
Liked cables
Patrick Mc Nally
21 Jan 2024
Verified Buyer
These jumper cables improve the sound of my system. I hooked them up to my Bowers+Wilkins 606 speakers, and the highs are clearer, and the bass is not as boomy.
The sound stage is more 3D so I feel I made a worthwhile purchase.
The sound stage is more 3D so I feel I made a worthwhile purchase.
Excellent Companion for Hifi Speakers That May Need Bi-wire
Carl
4 Nov 2022
Verified Buyer
I finally upgraded my system. I am using Q Acoustic Concept 30 speakers with my previously purchased jumper cables (spade-to-spade connectors).
My hi-fi sounds incredible using these connectors with the QED XT40i cables!
The spade-to-banana plugs could have been tidier at the back of the speaker, though. Nevertheless, they are both excellent and highly recommended!
My hi-fi sounds incredible using these connectors with the QED XT40i cables!
The spade-to-banana plugs could have been tidier at the back of the speaker, though. Nevertheless, they are both excellent and highly recommended!
EXCELLENT ADDITION FOR UPGRADING MY SPEAKER SYSTEM
Carl
13 May 2022
Verified Buyer
I ALREADY OWN A QED XT40I SPEAKER CABLE AND HAVE BEEN BLOWN AWAY BY THE QUALITY OF SOUND ACHIEVED USING THIS CABLE! HOWEVER, SOMETIME IN THE NOT TOO DISTANT FUTURE, I MAY BE UPGRADING MY SPEAKERS TO A MORE EXPENSIVE PAIR THAT USES BI-WIRE?
ALTHOUGH I HAVE NOT YET TRIED THE JUMPER CABLES, I AM CERTAIN THAT THEY WILL ENHANCE THE SOUND OF BI-WIRE SPEAKERS BASED ON MY EXPERIENCE USING XT40I CABLES?
ALTHOUGH I HAVE NOT YET TRIED THE JUMPER CABLES, I AM CERTAIN THAT THEY WILL ENHANCE THE SOUND OF BI-WIRE SPEAKERS BASED ON MY EXPERIENCE USING XT40I CABLES?
Excellent product, highly recommend.
Ken Taylor
4 Mar 2021
Verified Buyer
Beautifully engineered with quality spade ends to the QED XT 40i cable. These Jumpers now complete my Hi-fi upgrade and do make a noticeable difference, Thank you Future shop.
Terrific value upgrade to my Naim/B&W system
Kevin Moxey
26 Jun 2020
Verified Buyer
These were recommended to me by Gary as good match for my Naim A5 cables. Connectors are very high quality and the sonic improvement was remarkable.
Best value £60 I have ever spent!
Best value £60 I have ever spent!
Great set of jumpers!
Gary
3 Feb 2020
Verified Buyer
I bought a pair of Totem Tribe Tower to upgrade my Cambridge Audio CX system. The stock jumper is like a metal pin thus I suspect I can get better sound with a proper jumper. After reading some great comments, I bought this QED jumpers. These jumpers really give me great time with a much much better quality of sound in all ranges for the bottom bass to high pitch treble. Everything comes in a better manners.
I am a newbie in Hi-Fi so I can only expressed based on my limited experience. Certainly this QED jumper kit is very worthwhile for me.
I am a newbie in Hi-Fi so I can only expressed based on my limited experience. Certainly this QED jumper kit is very worthwhile for me.