ANALOGUE
With a vast array of technologies and our 40+ years in the specialist cable market, we produce cables to suit every budget to maximise the potential of your beloved system. With a vast array of technologies and our 40+ years in the specialist cable market, we produce cables to suit every budget to maximise the potential of your beloved system.
DIGITAL
Whether you’re connecting your TV to a sound bar or music server to a DAC, QED has a digital cable to meet your requirements. Our cables are tried and tested to ensure you get the best performance from your digital sources.
PHONO TO PHONO
When connecting your analogue sources such as your CD player or turntable to your amplifier, here at QED, we have a cable to suit your system. From our entry level Profile cable through to our flagship Signature Interconnect.
XLR
Using our unique Tri-Conductor technology and Neutrik XX-14 balanced plugs, our XLR cables offer the cleanest possible sound from a specialist XLR cable, whilst also incorporating our Ferrite insulation to eliminate timing errors.
DIGITAL COAXIAL
An alternative to optical, our premium digital coaxial cables use a specially designed cable cordage and unique plug design to achieve the precise signal characteristics required for high resolution and multi-channel audio.
USB A-B
With our high end USB A-B we isolate the power and data conductors preventing any potential cross talk, therefore meaning less jitter and an enhanced audio performance.
USB A-B MICRO
For use with Laptops/Computers and portable headphone amps/dacs, the QED reference USB A-Micro B uses our Ferrite insulation to reduce Jitter, as well as isolating the data and power lanes for a cleaner overall signal.
USB A-MINI B
Triple magnet screening and 24K gold plugs makes our Performance USB A-Mini B the best in its class.
JACK TO PHONO
Connecting your mobile device/tablet to your audio system has never been easier with our 2 step 3.5mm jack for a simpler connection.
HDMI
Using our in house HDMI testing facility, QED have designed premium HDMI cables to suit any budget. From our flexible and slimline profile to our exceptional Reference HDMI with its BandPass filter technology to reduce Jitter to Ultra low levels
OPTICAL
For all of your Optical needs, QED has an optical cable for you. For the more advanced, high bandwidth signals, Reference Optical Quartz uses glass technology to accurately send the information from source to receiver.
ETHERNET
The most common type of cable used for connecting products on a wired network. This cable connects wired devices together to the local network for file sharing and Internet access.
SUBWOOFER CABLE
Using technologies from our analogue cables such as complimentary conductor technology, your subwoofer will always perform to its best capability.
PERFORMANCE
Digital Audio
Digital isn't Immune to Physics
Digital audio is often treated as simple. After all, the signal is just ones and zeros, right?
Not quite.
Moving digital audio from a source to a DAC requires timing, precision and protection from interference. When those things aren't taken seriously, the result can be increased jitter, signal degradation and a system that's not performing at its best.
Performance Digital Audio is designed to take care of that connection.
Using a true 75Ω cable geometry, low-loss dielectric materials and enhanced dual-layer screening, it's engineered to transfer digital audio accurately and reliably between source and DAC. The kind of thoughtful engineering that's built QED's reputation over more than five decades.
Whether you're connecting a streamer, CD transport or digital music source, Performance Digital Audio gives you the confidence that you've got this connection right.
Digital Done Properly
A digital audio cable has one job: transfer data accurately from source to DAC.
The challenge is doing that while maintaining correct impedance, minimising signal loss and protecting the signal from external interference.
That's exactly what Performance Digital Audio is designed to do.
True 75Ω Design
Unlike generic audio cables, Performance Digital Audio is engineered with a true 75Ω characteristic impedance, matching the requirements of S/PDIF digital audio transmission.
Why does that matter?
Because impedance mismatches can create signal reflections that contribute to timing errors, or jitter. By maintaining the correct impedance throughout the cable, Performance Digital Audio helps preserve signal integrity from source to DAC.
Built to Keep Jitter Under Control
At the heart of the cable is a solid-core 99.999% oxygen-free copper conductor surrounded by a low-loss foamed polyethylene dielectric.
Together, these materials help minimise insertion loss and support accurate signal transfer, reducing the potential for cable-induced jitter.
We're not interested in digital magic. Just good engineering.
Protected From Interference
Modern homes are noisy places electrically.
Wi-Fi routers, televisions, games consoles, power supplies and smart devices all generate interference that can affect nearby cables.
Performance Digital Audio uses dual-layer shielding with a close-weave shield braid and aluminium/mylar foil wrap to provide 100% electromagnetic coverage, helping keep unwanted interference out of the signal path.
Flexible And Easy To Install
An ultra-flexible TPE outer jacket makes Performance Digital Audio easy to route behind equipment while providing effective protection from day-to-day mechanical stress. Gold-plated connectors ensure a reliable, long-lasting connection.
Key Features
- True 75Ω characteristic impedance for accurate S/PDIF signal transfer
- Solid-core 99.999% oxygen-free copper conductor
- Low-loss foamed polyethylene dielectric
- Dual-layer shielding for enhanced protection against interference
- Low insertion-loss design to help preserve signal integrity
- Ultra-flexible TPE jacket for easy installation
- Gold-plated connectors for long-term reliability
Product Features
- True 75Ω digital audio cable geometry
- Solid-core 99.999% oxygen-free copper conductor
- Dual-screen electromagnetic protection
- Foamed polyethylene dielectric
- Gold-plated RCA/phono connectors
- Flexible TPE outer jacket
Technical Specifications
- Conductor Material: Solid 99.999% Oxygen-Free Copper
- Conductor Construction: 1 × 1/0.58 mm (23 AWG)
- Screening Material: Aluminium/Mylar Foil Plus Tinned Copper Shield Braid
- Dielectric: Extruded Foamed Polyethylene
- Loop Resistance: 0.075 Ω/m
- Parallel Capacitance: 58 pF/m
- Loop Inductance: 0.39 μH/m
- Dissipation Factor: 0.0090 @10kHz
- Characteristic Impedance: 75 Ω
- Outside Diameter: 6 mm
- Jacket Finish: Stone Grey TPE
Performance Digital Audio is ideal for connecting:
- Streamers to DACs
- CD transports to DACs
- Network audio players to external DACs
- Digital music sources with coaxial S/PDIF outputs
- Hi-fi systems using dedicated digital-to-analogue conversion
Performance sits at the heart of the QED range. Above Connect and below Reference and Signature, it's the cable we'd recommend to most music lovers looking for trusted engineering and confidence in every connection.
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