


QED Performance QE7744 Digital Audio Coaxial RCA Cable 1.5m
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QED Performance Digital Audio Cable 1.5m
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.
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
Explore the full range in Audio Interconnects.
Specification
| 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 |
What's Included
- QED Performance Digital Audio Cable 1.5m
QED
About the QED QE7744
From our tech experts at CEN
The QED Performance QE7744 is the 1.5m length of QED's 75Ω coaxial digital audio cable. It links a streamer, CD transport or other S/PDIF source to a DAC or amplifier through a solid-core 99.999% oxygen-free copper conductor, a low-loss foamed polyethylene dielectric, dual-layer shielding and gold-plated RCA (phono) plugs.
Who it suits
Pick 1.5m when the source and DAC are on different shelves of the same rack or on neighbouring units. For components stacked together, the 0.75m QE7741 is tidier. If your kit only has optical sockets, look at the QED optical cables instead.
Our tech experts advise
Coaxial digital uses a single RCA plug at each end. Connect from the source's coaxial digital output to the DAC's coaxial input, then select that input on the DAC. Do not use it in an analogue phono socket. Allow a little slack so the plugs are not strained. Browse our QED collection.
Explore the full QED range at CEN, with fast UK dispatch and expert advice from our Nottingham team. Shop all QED
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Frequently Asked Questions
Q: What is the QED QE7744 used for?
A: The QE7744 carries coaxial S/PDIF digital audio between a digital source, such as a streamer or CD transport, and a DAC or amplifier with a coaxial (RCA) digital input.
Q: What impedance is the QE7744?
A: It is a true 75Ω cable, the correct characteristic impedance for S/PDIF coaxial digital audio.
Q: What length is the QE7744?
A: The QE7744 is 1.5m long. It is also available in 0.75m (QE7741) and 3m (QE7747).
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