Theta Digital Introduces Software Upgrade for Open -Architecture Casablanca III

Free, Downloadable Xtreme D-2 Performance Enhancement for Xtreme DAC Card Improves Audio Performance of Flagship Home Theater Controller


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Theta Digital Introduces Software Upgrade for Open -Architecture Casablanca III

Free, Downloadable Xtreme D -2 Performance Enhancement for Xtreme DAC Card Improves Audio Performance of Flagship Home Theater Controller

CEDIA EXPO, Indianapolis, Sept. 10, 2004 -Theta Digital, acclaimed as America's most advanced manufacturer of high -end digital audio and video products, introduces a significant Xtreme D -2 Software Upgrade for its extraordinary Casablanca III Music and Cinema Controller at CEDIA EXPO 2004, beginning today in Indianapolis.

The new Xtreme D -2 Upgrade enhances the performance of Theta's Xtreme DAC Card by raising it's audio processing to a new level of purity and dimensionality. The Xtreme DAC Card delivers the highest definition of any of the available DAC cards for the Casablanca III. It provides four channels of the highest quality balanced audio, and is capable of processing up to 24 bit/96kHz sources. It can be installed to provide up to 12 balanced channels when using all three of Casablanca's DAC slots.

Designed with Theta's classic Open Architecture, the Casablanca III facilitates software -based performance improvements. As in earlier Casablanca models, the processor's motherboard provides for all signal routing, while various daughter boards carry function -specific circuitry, such as the Xtreme DAC Card. This design philosophy, pioneered by Theta in the original Casablanca, allows installers to configure and upgrade the Casablanca to meet the personal needs of each owner with the exact number of channels and level of quality desired.

The Xtreme D -2 Upgrade came out of Theta's ongoing research on ways to enhance digital signal processing. A key part of Theta's digital signal processing is a tool that refines the representation of low -level detail, called dither. Theta has developed a completely new way of calculating dither, and has integrated this advance into the latest version of Theta's digital signal processing "suite", available as a software download.

Dither is used to refine the processing of digital signals by adding precision to the lowest -level signals. Every digital system has a finite number of digits per sample with which to represent information. The last digit, or least significant bit is the point beyond which no further distinctions can be represented. There is a big difference, however, between a truncated digital signal and one using a more elegant mathematical means of extending to the utmost a system's inherent performance.

Precision -generated noise, by statistically boosting the energy at the noise floor, allows information below the theoretical digital noise floor to be accurately represented. This increases the dynamic range achievable from a given bit depth. Looked at another way, it provides an opportunity to mitigate a severe type of digital distortion called quantizing error by de -correlating the quantizing error (or digital noise) from the signal. As a result, dither, along with noise -shaping, is a valuable, much -used tool in all digital signal processing. Strange as it might seem, one of the important factors in this statistical process is the generation of noise that's as perfectly random as possible, for the best de -correlation.

This is why more refined dither calculations are able to enhance the performance of even Theta's Xtreme Cards.

The Xtreme D -2 Upgrade is available to be downloaded from Theta's Web site,, into a Windows -based computer and moved from there into the Casablanca.

Casablanca III is the latest version of Theta's highly innovative, highly flexible series of surround processor/preamplifiers. Described by reviewers as "future proof" when originally introduced, the Casablanca's open -architecture design continues to offer customization and upgradability beyond the scope of other companies' more conventional designs.

Casablanca III offers exceptional configuration flexibility, in part through Theta's 12 -Channel Surround Processing, which provides speaker and amplifier configurations for up to 8.4 channels, and through the controller's ability to allow any of its 18 audio inputs and up to 10 video inputs to be routed to any or all of 12 input selectors, each of which can have up to six audio and six video sources routed to it.

Casablanca III's standard and optional features are too numerous to fully detail in this space. However, several offer particular value, including Theta's Center Spread, which corrects for theater sound mixes when played back in the home; Theta's proprietary Jitter Jail circuitry, which virtually eliminates jitter; and Theta's Dolby Digital/DTS/Circle Surround II Combination Card, which incorporates all current Dolby® and DTS processes as well as Circle Surround™ II Multichannel Audio Decoding.

All Theta components are available in black and silver, and many rack -mount versions are available.

Theta's Xtreme D -2 Upgrade is available now for download, at no charge for the software. The Casablanca III can be seen with Theta's other outstanding products in Booth 855, Indiana Convention Center, during CEDIA EXPO.

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For additional information about Theta Digital, please visit its Web site at

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