Theory of Operation

581se/781i CD Player

Using ClockLink with an External Processor

ClockLink eliminates jitter added when the clock signal is recovered from the digital data stream. In a non-ClockLink system, jitter is added when the clock signal is embedded in the data stream and transmitted to the DAC. When the clock signal is recovered from the data stream (as shown below), and used to clock the DAC output, this jitter degrades the sonic performance.

Data and Clock to DAC

Transport		DAC

Jitter Added

Conventional CD Player

With ClockLink, the clock is not recovered from the data. Instead, the master clock is located at the DAC. This clock signal is transmitted to the transport to keep it synchronized with the DAC. Because the recovered clock is ignored, any jitter on that signal does not affect the sonic performance.

	Data to DAC
Transport	DAC

Clock to Transport

CD Player with ClockLink

The Wadia 581ise/781i CD Player with its digital inputs and outputs can be used with a digital signal processor such as a digital equalizer. Digital processors allow the signal to be modified without adding analog noise and distortion. However, digital processors can add jitter, as shown below, causing noticeable sonic degradation.

Digital Output

Data and Clock to DAC

Digital

Processor

Jitter Added

Digital

Input

Transport		DAC

Conventional CD Player with an External Digital Processor

Using ClockLink with an external processor, the Wadia 581ise/781i CD Player ignores the incoming clock and uses the master oscillator at the DAC. As a result, jitter added by the external digital processor does not affect sonic performance..

	Digital	Data to DAC
		Data to DAC

Digital	Processor			Digital
Output				Input
Output				Input

Transport			DAC
Transport		Clock to Transport	DAC
		Clock to Transport

CD Player with ClockLink with an External Digital Processor

581SE, 781I specifications

Wadia Digital is a renowned name in high-resolution audio playback, and two of its standout products, the Wadia 581SE and 781i, exemplify this legacy. Both models are revered for their exceptional sound quality and state-of-the-art technology, making them sought-after components for audiophiles.

The Wadia 581SE is a sophisticated CD player known for its remarkable audio fidelity. It boasts an advanced digital-to-analog converter (DAC) that utilizes a proprietary 24-bit design, which plays a crucial role in delivering accurate and detailed sound reproduction. The device also supports various digital formats and high-resolution audio playback, ensuring versatility in audio sources. Its unique rack-mountable design reflects both functionality and aesthetics, seamlessly integrating into any audio system.

On the other hand, the Wadia 781i expands upon the features of the 581SE by incorporating additional functionalities, including built-in streaming capabilities. This model is equipped with Wi-Fi and Ethernet ports, allowing users to access a plethora of music streaming services and digital audio files directly. Like its counterpart, the 781i utilizes high-end DAC technology, ensuring that every note is rendered with precision, clarity, and depth.

Both models boast Wadia's patented Digimaster technology, which upscales the digital signal, enhancing playback quality and enabling a more immersive listening experience. This technology also reduces jitter, ensuring that the music is reproduced faithfully and without distortion.

The build quality of both players is exceptional, with robust chassis designs that effectively minimize vibrations and interference. The elegant displays and intuitive interfaces enhance the user experience, allowing for seamless navigation through tracks and settings.

Another critical feature of the Wadia 581SE and 781i is their support for high-resolution audio formats. This capability allows users to enjoy music at resolutions that surpass traditional CD quality, making them ideal for those with extensive high-definition music libraries.

In summary, the Wadia Digital 581SE and 781i represent the pinnacle of high-end audio technology, combining strong build quality, advanced digital processing, and versatile playback options. These models cater to the discerning audiophile, delivering an unparalleled listening experience through a blend of innovation and artistry in sound engineering. Whether through CD playback or streaming high-resolution files, both devices ensure that every listening session is unforgettable.