Preliminary Information
Voyager Universal Transport and DaViD DVD/CD Transport:



Voyager Universal Transport plays DVD/CD/LD discs

Theta Digital invented separate component digital to analog converters shortly after the introduction of compact disc players, in order to provide improved sound quality from digital sources. Theta has won acclaim for pioneering important technology in "high end" (audiophile) digital sound reproduction. Voyager Universal Transport and DaViD result from over a decade of intensive research and development refining all aspects of digital signal reproduction

DVD, as a medium, presents new challenges. The audio sampling frequencies are higher than CDs: 48Khz and 96Khz and the video is presented in a purely digital form, unlike laser discs, which are recorded and played back in analog format.

Voyager and DaViD are both based on very stable drive mechanisms, for the most accurate reading of discs. Then, Theta's powerful technology deals with jitter and digital noise, the two most pervasive problems for digital signals.

DVD's disparate clock speeds (16 mHz audio and 18 mHz video) multiply digital noise, as they tend to interact. This noise can degrade both sound and picture, creating less than satisfying audio performance and video that is unclear, noisy and lacking three dimensionality. Voyager and DaViD bring radical technological solutions to both audio and video sections.

Theta solves jitter problems by buffering and reclocking digital data. The buffer becomes your source, rather than flawed discs, and provides a more perfect signal. A custom-manufactured low-jitter crystal oscillator at its heart, Theta's master clock actually stores the signal long enough to realign data, correcting raw data as it comes from the disc. (More detailed information is available on this technology.)

Audio
High-speed CMOS logic gates used in reclocking and extensive use of ground planes prevent digital noise and hash from corrupting this pure clock signal in the audio section.

Theta-designed low-flux transformers and high isolation power supplies are used to supply each key area of the audio board, isolating clocks and DSP sections. Finally the signal is output through extremely high frequency pulse transformers to a varied array of output terminals. Formats include PCM, AC-3, and DTS output at RCA, BNC and AES/EBU connectors. Factory installed, optical output is available in either A&TT or Single Mode, as an option, for either transport.

Video
The video sections are handled as meticulously as the audio. Multiple transformers and high isolation power supplies separately feed critical areas of the video section, including the clocks, output circuits and main DVD decoder circuits. In addition, the motor controller and display are isolated from the rest of the circuits.

In total, the Voyager has seven transformers and twenty-one highly regulated supplies. DaViD has six transformers and fourteen highly regulated power supplies.

This careful separation of audio, video, display and motor supplies keeps circuits from interacting. This assures that each circuit is kept as free from both digital and electro-mechanical noise as possible. The DVD decoder power section is then filtered again at key points to further minimize residual noise. After the digital video signals are converted to analog signals, they are sent to individual Theta-designed video filters and extremely high-speed output buffers. Video outputs for both transports include: 2 S-Video, 2 Composite Video (RCA / BNC) and Component Video (BNC).

Voyager's outputs also include left and right analog outputs for the analog tracks of Laser Discs as well as an AC-3 RF output for Laser Discs.

Additional Voyager Features
The Voyager uses two separate laser head pickups. One is used for the playback of DVD source material and has a wavelength of 650nm. The second is used for the playback of CDs and Laser Discs and has a wavelength of 780nm. This assures the maximum performance of each type of source material. A high speed Epsilon Turn Mechanism automatically plays the second side of a Laser Disc for added convenience.

Both Voyager and DaViD provide on-screen displays for simple command of all options, settings and functions, accessed via comprehensive remote controls.



Voyager is 19"Wx73/4"Hx20D", weighs 52 lbs. Available in Black or Silver finish.

DaVid is 19x31/2x161/2 inchs, weighs 25 lbs. Available in Black or Silver finish.


Theta Digital Corporation
5330 Derry Ave., Suite R, Agoura Hills, CA 91301 (818) 597-9195, FAX (818)597-1079
www.thetadigital.com