QED Reference Audio 40 Interconnects

QED Reference Audio 40 Interconnects

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QED's Reference series is the penultimate range of interconnects in their extensive catalogue. Featuring an entirely new design concept, the cordage of the Reference models are designed first and foremost for low capacitance. This is because QED have identified this factor as being a significant player in the high fidelity listening experience, by retaining a low capacitance, sound signals are better looked after and allow for a more collected and detailed hifi performance. 

The Reference range also utilises QED's 'Complementary Conductor Technology' to ensure a high frequency detail, and their Analoc Technology to optimise signal integrity. All QED interconnects and cables feature a lifetime warranty, including the Reference series.

QED Reference 40 Stereo Phono to Phono interconnect is the choice for those who are looking to expand their component’s sound quality within their Hi-Fi or Home Cinema set-ups.

The features that the Reference interconnects has are unmatched in its league for value of money. The Reference range of audio interconnects has been designed for those who seek refinement in the connection between system components, without the price that often puts off many people from their ideal choice of interconnections. Heavily featured in the QED Reference Phono interconnects is the use of 99.999% Oxygen Free Copper conductors, symmetrical geometry pairs, double screened, Mylar foil wrap and an oxygen free braiding.

Of course, Reference doesn’t just stop there. Eight leaf 24K gold RCA connectors and ground ring for connection durability, also features precision engineered plugs, with grips, to finish off this high-performance audio interconnect from QED.



 Conductors Silver Plated 99.999%
Oxygen Free Copper
Dielectric LDPE
Geometry Asymmetrical twisted pair
Shielding OFC, 100%
electromagnetic screening
Jacket Zn/Mn ferrite
RCA Plugs Gold plated QED ‘Analoc™'
Parallel Capacitance 76 pF/m
Inductance 0.37 uH/m
Loop resistance 0.072 Ω/m
Dissipation Factor 0.0059

Providing your item is in stock, the order is usually dispatched within 24 hours. Please remember that postage and packing is completely free for orders over £50*. Out of stock items will be dispatched as soon as they become available, out of stock items can take between 4 to 21 days for dispatch.

Deliveries usually take 1-3 working days. The majority of orders are sent via our couriers'; Interlink Express on a next-day-delivery service. Smaller, low value or light-weight items are normally posted using Royal Mail Recorded or Royal Mail Special Delivery.

Once your product has been dispatched, you will be notified via email and sent a unique consignment number, you can use this number at to check the status of your delivery. If you have provided a mobile telephone number, Interlink's Predict service will notify you by text (and email) of a one-hour delivery window. If the window they suggest is inconvenient, you can change the date of delivery to a later one via text or email.

*We ship free of charge to mainland UK addresses, excluding the Scottish Highlands or 'Out-Of-Reach' Scottish locations. Please consult the post-codes below to see if your location falls within this category. If you are still unsure, please contact us on 01432 354921. We also ship to Northern Ireland, Channel Islands, Scilly Isles, Scottish Isles and Scottish Highlands, however delivery to these locations will incur a charge and can only be sent via a 2-day service.

Shipping CostsMainland UK (Next-Day)Offshore/Out-of-reach (2-day)Northern Ireland, Channel Islands, Isle of Man, Scottish Islands, Scilly IslandsRepublic of Ireland (2-day)
Under £50 Orders £7.50 £12.50 £15.00
Over £50 Orders FREE £19.99 £29.99
Surcharge Orders £50.00 £69.99 £79.99
Saturday Delivery £12.99 N/A N/A
Sunday Delivery £12.99 N/A N/A


Post codes exempt from the free delivery service include:

Scottish Highlands Post Codes: AB30-38, AB41-42, AB44-56, FK17-99, G83, IV1-28, IV30-39, IV52-54, IV63, KW1-14, PA21-33, PA34-40, PH15-26, PH31-41, PH49-50
Islands Post Codes: HS1-9, IV40-51, IV55-56, KA27-28, KW15-17, PA20, PA41-49, PA60-78, PH42-44, ZE1-3
Northern Ireland: All BT postcodes
Channel Islands Post Codes: JE, GY
Scilly Isles Post Codes: TR21, TR22, TR23, TR24, TR25

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