QED Reference Hi-Res USB A-B Cable

The​‍​‌‍​‍‌​‍​‌‍​‍‌ QED Reference Hi-Res USB A-B Cable was take a step even further and now deliver even more accurate, versatile and compatible transfer of HD digital audio between USB audio components such as computers, storage devices or high performance DACs with ultra low jitter.

QED Reference Hi-Res USB A-B Cable

The QED Reference Hi-Res USB A-B Cable comes with full high-resolution audio compatibility including 32bit, DSD and MQA technology, QED’s Clear Path Audio technology to segregate power and data lanes within the cable. IImpedance Controlled Data Lanes for low-jitter and timing errors have also been ​‍​‌‍​‍‌​‍​‌‍​‍‌upgraded.

Impedance​‍​‌‍​‍‌​‍​‌‍​‍‌ Controlled Data Lane

The QED Reference Hi-Res USB A-B Cable is fabricated with a very strictly controlled. 24 AWG, highly pure copper twisted pair cable (99.999%) with foamed polyethylene dielectrics of low permittivity.

The result is a delightful increase in the extent to which even very critical listeners will be able to differentiate between the musical content delivered by the cable and live music. When listening tests are conducted in specially designed listening facilities.

Clean Path Audio Technology

Many audiophiles believe that sharing Hi-Res USB power cables capable of charging currents and PC power supply noise with the audio data counter can have a detrimental effect on quality of sound. However, QED Reference data lanes are very cleverly electrically separated by using double-layer shielding consisting of a wrap of aluminium/mylar and shield braid.

Ferrite Insulation Technology

The QED Reference Hi-Res USB A-B Cable utilizes a uniquely integrated Zn/Mn floating, ferrite plaque. QED through a secret recipe impregnates the cable internally with a special coating that carries this high frequency noise absorbent radio frequency distributed evenly along the cable.

Besides absorbing the high-frequency noise signals produced both physically and electrically. It also increases the physical and electrical quietness to the level of advanced digital audio signal jitter that results in lowest to undetectable noise levels.

High Resolution Audio

Depending on the capabilities of the equipment at the receiving end. The jitter may cause audible distortions to the digital audio signal. To simply put it, jitter in the system causes Reference Hi-Res USB to present a distorted signal. The occurrence of harmonics not present in the original signal is due to the interaction of the frequency of the required signal with the frequency of the jitter.

QED Reference High Resolution USB is undoubtedly an excellent choice for Hi-Res audio usage. Because of its incomparable performance in reducing jitter. Through our experiments. We have seen that this feature enables a person to listen to music in a way that is both more musical and enjoyable and not only fatigued the listener. But also left him/her wanting more. A relaxed and long-lasting listening session is the outcome.

It even offers the entry-level cables of each range a sound quality advantage over their similar price rivals. Reference HighResolution USB is the state of the art product by QED. Thus, represents the pinnacle of our understanding of this extremely complicated cable usage.

QED’s Clear Path Audio Technology

Very much like the name suggests. This remarkable new cable is fully compatible with high-resolution audio formats. Like 32bit, DSD, and MQA. Besides, QED’s Clear Path Audio technology cleverly differentiates the power and data channels inside the cable.

The result is a big improvement in the fidelity of the audio signal delivery while the Impedance Controlled Data Lane is made to eliminate jitter and other timing errors. Greater compatibility leads to higher accuracy which finally results in better performance and ​‍​‌‍​‍‌​‍​‌‍​‍‌sound.

Features and Benefits

• Silver Plated​‍​‌‍​‍‌​‍​‌‍​‍‌ Conductors: They transmit the audio signal. With great clarity and accuracy.
• Low jitter Design: This reduces the time variation of a digital signal which results in less distortion of the final sound.
• USB A-B Compatibility: Connects easily with DACs and audio systems. Without causing any problems.
• Hi-Res Audio Support: Feature designed specially for high resolution music files.
• Durable Outer Shielding: Protects the cable from any interference of the signal.
• Gold Plated Connectors: Make it sure that the connection is strong and dependable.
• Flexible Build: Gives the possibility to be installed and positioned. Without any problem in any device setup.
• Reliable Data Transfer: Maintains the digital audio’s accuracy during the transfer ​‍​‌‍​‍‌​‍​‌‍​‍‌process.

Summary of the QED Reference Hi-Res USB A-B Cable

Because the impedance of the data lane is kept strictly within defined limits of 90 Ω +/- 5% with a rise time of just 100 ps for a 3 m cable. It exceeds the specification given in the USB 2.0 standard by more than half. Therefore the timing error or jitter added to the isochronous data stream is kept to a minimum.

This has the effect of increasing the enjoyment of actually listening to music being conveyed by the cable. To an extent large enough for it to be statistically significant in listening tests conducted in our bespoke listening facilities.

Integration in any Environment Made Easy

QED​‍​‌‍​‍‌​‍​‌‍​‍‌ Performance USB A-B Graphite cables deliver what audio interconnects should do. Quite simply, keep the signal pure and isolated from noise.

Very Low Jitter

Jitter is the unwanted variation from the true periodicity of an assumed periodic signal in electronics and telecommunications. Often with respect to a reference clock source. A cable showing very low jitter has been measured typically at 21ps ​‍​‌‍​‍‌​‍​‌‍​‍‌rms.