581 Disc Player

Playback Options

Time: This button switches between the various time modes on the display. Before play, the total time on the disc is shown. Once a disc starts to play the elapsed time of that track will be shown. Pressing the button on the remote control once will cause the display to indicate the remaining time in that track (remain). Pressing this button on the remote control again will cause the display to indicate the total time elapsed for the entire disc. Pressing the button another time will cause the display to show the total time remaining for the entire disc. Finally, pressing the button again will cycle back to the original default setting.

Repeat: Pressing this button will cause the entire disc to repeat continuously. Pressing this button a second time will take the transport out of the repeat mode.

Single Repeat: Pressing this button will repeat a single track continuously. Pressing the single repeat button a second time will take the transport out of single repeat mode.

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Digital Algorithms

In the Wadia 581 Disc Player there are three user-selectable digital algorithms that can be used to optimize the sonic performance based on system matching and personal musical priorities.

The three algorithms in the 581 Disc Player all upsample to 32x the input rate (at 24 bit/1.4112 MHz DAC sample rate), but differ in their time and frequency domain characteristics. They are:

Algorithm A Digimaster v2.5. Wadia’s classic time-domain interpolation algorithm delivers a robust sound with extraordinary image Focus and re-creation of recorded space.

Algorithm B Provides a more extended top end than Algorithm A, with superior time-domain performance compared to conventional CD filters.

Algorithm C Retains the high frequency extension and superior detail resolution of Algorithm B, but with a more relaxed presentation overall.

The selected algorithm is used for 44.1 kHz (CD) and 48 kHz sources, either from the internal transport or any of the four digital inputs. For 88.2 kHz, 96 kHz and DSD (SACD) sources, Digimaster v2.5 is always used as it provides the best performance at high-sample rates.

We encourage you to become familiar with the unique sonic performance of each of these algorithms and enjoy the one that brings you optimum musical pleasure.

Selecting an Algorithm

To change the digital processing algorithm, press the Enter button on the remote control repeatedly to bring up this configuration screen:

The selected algorithm is shown on the second line of the display. Use the Up and Down Volume buttons to scroll to the desired algorithm, then either press the Mute button or the Enter button to navigate to the ‘Save Changes?’ screen and choose ‘Yes’. The display will indicate ‘CONFIGURATION STORED’ and the output of the 581 Disc Player will mute for 5-10 seconds while the selected algorithm is downloaded to the two DSP computers.

Performing an Algorithm Comparison

When comparing processing algorithms it is important to adjust the volume to compensate for the different gains of the algorithms. Without this adjustment the one which is louder will usually sound better in a short-term A/B comparison.

In the 581 Disc Player, algorithm A is approximately 1db higher output level than B and C (which are within

0.1db of each other). To compensate for this higher output level, increase the indicated volume setting by 2 units for algorithms B and C when comparing them to A.

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Wadia Digital 581 operation manual Playback Options, Digital Algorithms
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581 specifications

Wadia Digital's 581 is a high-performance CD player and digital-to-analog converter (DAC) that has earned a significant reputation among audiophiles and music connoisseurs alike. Launched into the high-end audio market, the 581 is known for its innovative technology and exquisite sound quality that brings listeners closer to the original recording.

One of the most striking features of the Wadia 581 is its proprietary DigiMaster technology. This technology ensures accurate digital signal processing, allowing for exceptional sound reproduction with minimal distortion. DigiMaster is designed to provide a precise and natural sound stage, retaining the dynamics of the original recording while minimizing any coloration that might alter the listening experience.

The 581 employs an advanced digital filter system, which offers users the ability to customize their listening experience. This flexibility allows listeners to select among several digital filtering options, ensuring that they can tailor the sound to their preferences. Coupled with a high-quality DAC, the Wadia 581 is capable of decoding a wide range of digital audio formats, providing users with versatility and ease of use.

Wadia's signature construction methods also shine through in the 581. The player is built with an all-aluminum chassis that minimizes external vibration and interference, contributing to a cleaner, more accurate sound. The internal components of the 581 are carefully selected, featuring high-quality capacitors and precision engineering that work together to create a robust and reliable playback system.

In terms of connectivity, the Wadia 581 offers multiple digital inputs, including coaxial, optical, and USB, accommodating various modern digital sources. This flexibility enables users to integrate the player into a wide array of audio setups, making it not just a standalone CD player but a versatile digital hub.

The 581 also features a high-resolution LCD display, which provides essential playback information and allows users to navigate tracks effortlessly. The user interface is intuitive and designed for ease of operation, making it accessible for both seasoned audiophiles and casual users.

In summary, the Wadia Digital 581 stands out in the realm of high-end audio equipment due to its blend of advanced technologies, customizable features, and elegant design. It is a strong choice for those seeking an exceptional listening experience that reflects the true essence of the music.
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