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QED Reference Subwoofer 40 Cable - Custom Length
£79.95 £66.62
SKU
QED Reference Sub 40 Custom
Lifetime
New
24 hours
Reference Subwoofer 40, the new standard for timing, accuracy and rhythm.
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QED Reference Subwoofer 40 Cable - Custom Length
Reference Subwoofer 40, the new standard for timing, accuracy and rhythm.
QED Subwoofer 40 has been designed primarily for low capacitance, as this has been identified by QED as a major factor making for a tight sound which retains the rhythm of the original piece - vital when it comes to the 'bottom end!" Minute timing errors are ameliorated by the use of QED's Complementary Conductor TechnologyTM combined with a special floating Zn/Mn ferrite jacket to absorb very high frequency noise signals outside the audible band. The QED Analoc™ plug design helps to control eddy currents which can also affect the micro-timing of the audio signal, maintaining high- fidelity from start to finish.
Award Winning Heritage
QED has won more What Hi-fi Awards than any other single brand. With the Reference cable range this heritage is delivered directly and without compromise. All QED cables are designed using the top down principle with Reference Subwoofer 40 representing the pinnacle of musical performance.
Floating Internal Ferrite Jacket
Absorbs high frequency noise signal components outside the audio band. When measured using high frequency measurement equipment, Audio 40 products convey a comparably cleaner and tighter signal pattern when its special Zn/Mn ferrite jacket is present. This has a beneficial effect on audio signal micro-timing and may account for the clear preference expressed for the ferrite jacket in listening tests.
Just Listen
Silver plated signal carriers, effective high quality shielding and low eddy current plugs all combine to create audible sonic improvements. We urge you to compare it not only to your favourite cable but also alternative brands and models at any price!
Analoc RCA Plugs
This all new locking design features small high purity gold plated 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 are thought to affect the micro-timing of the audio signal. Coupled with its hollow central pin, which is designed to combat the skin effect in the same way as our X-Tube speaker cables, the new QED Analoc plug maintains the fidelity of the audio signal from start to finish.
Complementary Conductor Technology
Improves timing and detail, retaining the rhythm of the original piece - vital when it comes to the "bottom end." Unlike conventional analogue interconnects, Reference Audio 40 uses two silver plated 99.999% Oxygen Free Copper conductors of different diameters to carry the same audio signal. This has the effect of providing an alternative signal path for more subtle audio components which might otherwise become time smeared in a single audio pathway. Reference Sub Woofer 40 is further optimised by having a 25% smaller diameter than Reference Audio 40 making it more convenient for those long runs around the room.
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Complementary Conductor TechnologyComplementary 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. |
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Analoc™ TechnologyQED ‘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 |
Specification :
- QED Complementary Conductor Technology™ with 99.99% Silver Plated Oxygen Free Copper
- Zn/Mn ferrite jacket to absorb high frequency noise signals
- Low losss foamed polyethylene (PE) dielectric
- 99.999% Oxygen Free Copper braid for 100% electromagnetic screening coverage in a coaxial geometry
- Twin leaf 24k Gold plated QED Analoc™ RCA plugs featuring high purity copper contacts, hollow centre pin and low eddy current design
- Conductor Section 0.30 mm2
- Parallel Capacitance 124 pF/m
- Loop Resistance 0.076 Ω/m
- Loop Inductance 0.33 uH
- Dissipation Factor @ 10 kHz 0.0210
- Outside Diameter 6 mm
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 :
- QED Complementary Conductor Technology™ with 99.99% Silver Plated Oxygen Free Copper
- Zn/Mn ferrite jacket to absorb high frequency noise signals
- Low losss foamed polyethylene (PE) dielectric
- 99.999% Oxygen Free Copper braid for 100% electromagnetic screening coverage in a coaxial geometry
- Twin leaf 24k Gold plated QED Analoc™ RCA plugs featuring high purity copper contacts, hollow centre pin and low eddy current design
- Conductor Section 0.30 mm2
- Parallel Capacitance 124 pF/m
- Loop Resistance 0.076 Ω/m
- Loop Inductance 0.33 uH
- Dissipation Factor @ 10 kHz 0.0210
- Outside Diameter 6 mm
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.
Customer Reviews
4.4 /5.0 of 5 Reviews
A great all round positive service from Futureshop.
QED Reference Subwoofer 40 cable
10 Apr 2022
Verified Buyer
Superb cables from QED. Quite flexible with excellent RCA connectors. The Bass is taut and rhythmic with a very low noise floor. It is highly recommended.
Great cable, excellent service
Carlos Costa
29 Jul 2021
Verified Buyer
I ordered the Qed reference audio subwoofer cable. Mark D'Mello quickly informed me that they had no stock of this cable, but that they could make it with exactly the same Qued original materials (cable and plugs), but with a high quality of manufacture. I accepted the offer and within 24 hours I had the cable mounted on my system. Note that Futureshop is in England and I am in Portugal. Faster is not possible. After a few hours of listening, the cable greatly improved the sound quality of my system. Previously I was using a cable from SVS, the QED reference audio 40 subwoofer is incomparably better: better defined basses, much more natural sound.
Very good cable and excellent service from Futureshop.
Very good cable and excellent service from Futureshop.
Very good cable, finally got rid of almost all of my subwoofer ground loop issues
Alan
21 Apr 2018
Verified Buyer
Very good cable, finally got rid of almost all of my subwoofer ground loop issues.
I bought this cable to replace another cable that I have been using since 2007 which was giving me trouble with loud parasite crackling noises coming unto my subwoofer and which happened quite frequently and was very loud and annoying.
So I have been using the QED Reference Subwoofer 40 since the end of February and can say that it got rid of 99 percent of the parasite / interference / humming / crackling noises that I used to have.
I bought this cable to replace another cable that I have been using since 2007 which was giving me trouble with loud parasite crackling noises coming unto my subwoofer and which happened quite frequently and was very loud and annoying.
So I have been using the QED Reference Subwoofer 40 since the end of February and can say that it got rid of 99 percent of the parasite / interference / humming / crackling noises that I used to have.