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RCA Pair

QED Reference Audio 40 Cable - Custom Length Pair

£74.99 £62.49
SKU
QED Reference 40 Custom
Lifetime
New
24 hours
Out Of Stock

Need help? Call us on 0800 772 3688 or 0208 905 1555

Prefer email? Contact us via sales@futureshop.co.uk

The revolutionary Reference Audio 40 analogue audio interconnect celebrates 40 years at the forefront of British designed audio cables.

QED Reference Audio 40 Cable - Custom Length 

 

The revolutionary Reference Audio 40 analogue audio interconnect celebrates 40 years at the forefront of British designed audio cables.

The Audio 40 cable range is an entirely new design concept from QED labs. The cordage is designed primarily for low capacitance as this has been identified by QED as a significant factor which leads to a high fidelity experience, making for a tight sound and retaining the rhythm of the original piece. Add our Complementary Conductor Technology™ for high frequency detail and our Analoc Technology™ to maximise signal integrity and the result is what we feel to be the most innovative interconnect ever made by QED. 

 

QED Ordinary Cable Jitter Diagram QED Audio 40 Jitter Diagram
The two diagrams above show the difference measured in a high frequency data stream applied to an ordinary cable without the improvements (left) and with the improvements in the QED cable (right) The ability to accurately transmit high frequency impulses means that within the audio band timing and dynamics should be improved.

  

Complementary Conductor Technology™

This innovation utilises two conductors of different diameters to carry the same audio signal. This has the effect of providing an alternative path for high frequency audio components which might otherwise become time smeared in a single audio pathway.

  

Foamed Polyethylene Dielectric

Foamed Polyethylene has a low dielectric constant and has been used to cut down on the amount of audio signal energy lost due to cable capacitance. 

 

ANALOC™ Locking RCA Plugs

The new QED Analoc™ plug is a low eddy current design featuring small high purity copper conductors in place of the usual large volume brass body found in ordinary high quality plugs. This cuts down or eliminates the tendency for the changing magnetic field in the conductor to induce eddy currents which can affect the micro-timing of the audio signal. 

 

QED Analoc technology

ANALOC™ Technology

QED ‘Analoc™ RCA plug which features high purity copper signal and ground connections in an insulated low eddy current brass body. The hollow central pin eliminates skin effect in the signal connection and the locking barrel design clamps the dual tombstone ground connection firmly to the RCA sockets

QED Complementary Conductor Technology

Complementary Conductor Technology

Complementary conductor geometry utilises two conductors of different diameters to carry the same audio signal. This has the effect of providing an alternative path for high frequency audio components which might otherwise become time smeared in a single audio pathway.

 

There are three cables in the Audio 40 range representing the long established Performance, Reference and Signature designations which have always corresponded to the “good, better, best” principle of QED product hierarchy. However the whole range has been developed using a strict top down approach which means that all three cables share an almost identical construction and geometry with the Signature cable representing the ideal ‘cost no object’ original state of the design with the Performance cable its cost engineered alternative. The Reference cable represents the perfect balance of performance against the law of diminishing returns omitting only the most expensive components.

 

 

QED Reference Audio 40 What Hi-Fi? 5 Star Review

"QED Interconnect brings fantastic depth and dimension. Bass notes appear to plunge deeper and there's a meaty, mature tone to the music, but not at the expense of control or agility. Tunes are engaging and balanced with an impressive level of detail." (Read more)

What Hi-Fi? Sound & Vision June 2014

 

Equipment Review - Hi-Fi World - June 2017

“In terms of build the QEDs are excellent - the plugs are solid while the cable itself is chunky but flexible enough to fit into tight spaces behind components even when close to a wall.” (Read More)

Equipment Review - Hi-Fi World - June 2017

 

 

Specification :

  • Silver Plated 99.999% Oxygen Free Copper (SPOFC) conductors with LDPE dielectric
  • Asymmetrical twisted pair geometry
  • OFC shield giving 100% electromagnetic screening
  • Zn/Mn ferrite Jacket
  • Gold plated QED ‘Analoc™’ RCA plugs
  • Parallel Capacitance: 76 pF/m
  • Inductance: 0.37 uH/m
  • Loop resistance: 0.072 Ω/m
  • Dissipation Factor: 0.0059
  • QED Lifetime Guarantee

 

About QED Cables Made in United Kingdom

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 :

  • Silver Plated 99.999% Oxygen Free Copper (SPOFC) conductors with LDPE dielectric
  • Asymmetrical twisted pair geometry
  • OFC shield giving 100% electromagnetic screening
  • Zn/Mn ferrite Jacket
  • Gold plated QED ‘Analoc™’ RCA plugs
  • Parallel Capacitance: 76 pF/m
  • Inductance: 0.37 uH/m
  • Loop resistance: 0.072 Ω/m
  • Dissipation Factor: 0.0059
  • QED 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.

 

Royal Mail 1st Class Shipping DPD Next Day Delivery

 

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.

 

Royal Mail Special Next Working Day Delivery

 

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

 

Royal Mail International DeliveryRoyal Mail International Tracked DeliveryFedEX Express Economy International DeliveryFedEX Express Priority International DeliveryDHL Worldwide Express International DeliveryDHL Econmy Select International Delivery

 

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.

 

Royal Mail International DeliveryRoyal Mail International Tracked DeliveryFedEX Express Economy International DeliveryFedEX Express Priority International DeliveryDHL Worldwide Express International DeliveryDHL Econmy Select International Delivery

 

Free Cable Burn-In Service Option Using The Nordost Vidar Machine

 

Please Note: We are unable to burn-in cables with stripped bare ends or BFA plugs. Cables are burnt-in for the selected time period AFTER your order has been processed. Custom-length cables are burnt-in for the selected time period AFTER they have be terminated by the manufacturer or our engineers. 

Our cable burn-in service is a non-chargeable service and is provided by Future Shop at its discretion. We will attempt to fulfil all burn-in requests for the specified time periods. However, during extremely busy periods, we regret we may not be able to meet demand for all requests due to the limited connections available on the Nordost Vidar cable conditioning machines.

We are pleased to offer a free cable burn-in service for this cable when purchased through Future Shop. The Nordost VIDAR cable burn-in machine combines three distinct functions all in one operation:

  • It neutralises charges that build up around the cables and the insulation
  • It provides a very wide band and deep conditioning into the conductor core, which produces changes in the way signals pass through the metal.
  • It ultrasonically conditions the surface of the conductors.

 

Nordost Vidar Burn-in Machine

 

The VIDAR uses a proprietary combination of composite and complex signals to condition the cables. Parts of the signal oscillate at ultra-low frequencies, while other parts are in ultra-high ranges which extend beyond the range of video frequencies. The signal bounces in a ping-ping ball-like fashion from one end of the cable to the other. During the burn-in process, ultra-low frequencies penetrate deep into the core of the cable. The ultra-high frequencies zip along the surface. This method of signal transmission is set up to beat harmonics, or heterodynes, between the two complex waveforms. In the digital domain, this would be referred to as aliasing products. These beat frequencies penetrate all layers of the cable.  

The design of the circuitry also has a unique feature which drives electrons above the conductor into the dielectric (or insulation) area. The VIDAR not only sends ping pong signals along the cable, it also sends a similar signal from the centre core to the outer shield in the case of interconnect cables. This function neutralises the electrical charges discussed above.

So, what does that all mean to me?
The end result of conditioning cables with the Nordost VIDAR is improved sound staging, increased detail, and an overall more musical presentation.

Download Icon  READ MORE ABOUT THE NORDOST VIDAR CABLE TREATMENT

 

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