Wadia Digital 581 Brochure

Wadia Digital . John W. Schaffer . 734.786.9611 x114 . [e-mail] . www.wadia.com

FOR IMMEDIATE RELEASE

Wadia Introduces New Multi-Format Audio Players

Wadia 581 and 581i Disc Players Feature Multi-Format Stereo Audio Playback, New Digital to
Analog Technology and Other Sonic Enhancements for CD’s, SACD’s, and High-Sample Rate Sources

January 1, 2006 – Wadia introduces the sophisticated series 5, 581 and 581i ; the first entries in a new

family of multi-format Wadia Disc players.

The Wadia 581 and 581i(581i featuring digital inputs and outputs) Disc Players, built with the
classic Wadia quality and aesthetic, advance the performance of the now legendary 861 decoding circuit
and add multi-format stereo audio playback capabilities. The 581 and 581i Disc Players represent true
innovation from Wadia and signal the company’s commitment to provide customers with expanded
features and superior sound.

New and Updated Technology Throughout – New design features include a multi-format capable
transport, an advanced proprietary software based DSD Processing Algorithm that generates bit corrected
SACD playback and 6 new Circuit Topologies. Wadia SwiftCurrent™ 2 Discreet (SC-2D) allows for superior
current to voltage (I/V) conversion. Traditional Wadia technologies such as DigiMaster™, ClockLink™,
and DirectConnect™ with Digital Volume Control have been updated for the new players. Improvements
to the main decoding circuit include a new master clocking scheme, time coherent analog filter array,
and a superior grounding scheme. Greater current capacity and improved filtering provide improved
power onboard the main decoding circuit.

New Multi-Format Disc Mechanism – Modified to allow ClockLink jitter reduction and pure data
capture, this new multi-format mechanism provides state-of-the-art audio information extraction. No less
than 6 patent worthy technologies ensure that data is accurately captured from audio discs regardless of
format. The mechanism is further enhanced by a custom mounting and enclosure system that provides
both mechanical and electrical isolation. Performance of this mechanism surpasses even the highly
acclaimed 3.2 transport featured in previous players.

DigiMaster – The patented DigiMaster filter system is optimized to preserve the subtle time
and phase information vital to musical realism. Dual digital processors running DigiMaster software
(release 2.5) attain 24-bit resolution at sample rates in the millions.

SwiftCurrent 2 – SC-2D technology, a powerful proprietary circuit introduced in the Wadia PowerDAC
Digital Amplifier, has now been re-invented. To exploit the extraordinary data rate generated in the digital
section a discreet implementation of our patented current mirroring technology was created. Current exiting
the D>A converters is now optimally loaded, in turn allowing each DAC to remain linier. Current is then
mirrored and driven with a zero global feed back Class A throughput stage. The output feeds directly into
a phase accurate filter that simultaneously creates voltage and removes unwanted high frequency noise.

Wadia DirectConnect Technology with Digital Volume Control – DirectConnect allows the Wadia
581, and 581i Disc Players to be connected directly to a power amplifier, bypassing the losses inherent
in analog preamplifiers.

ClockLink Jitter Reduction – ClockLink eliminates jitter-inducing clock transmission by locating the
master clock at the DAC instead of the transport. The result is significantly reduced jitter and markedly
improved sonic performance.

High-Power Zero Noise Supply – 30x the reserve capacitance required is available for DC current
supply from the all new switching power supply board. The switching frequency at .5 Mega-Hertz
ensures that no noise approaches the pass band. Filtering was upgraded and the outputs fully isolated
to insure no noise contamination.

Upgradeable Modular Design – Upgrade flexibility is a cornerstone of Wadia’s philosophy.
Software-configured circuitry, along with modular design such as digital outputs, 24-bit digital inputs
as featured on the 581i, ensure that the Wadia series 5 Disc Players can be upgraded to accommodate
future technology.

Sonically – The Wadia 581 and 581i Disc Players draw the listener into the music with spacious
3-dimensional images, instantaneous transients, and remarkable liquidity of sound. The Wadia 581
Disc Players offers a higher level of musical realism than any Wadia disc player previously available.

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Wadia Digital . www.wadia.com

Digital Inputs:

1 glass fiber optic (ST)
1 S/PDIF (BNC)
1 plastic fiber (Toslink)
1 AES/EBU (XLR)

(All inputs accept any
sample rate up to 96kHz)

Digital Outputs:

1 glass fiber optic (ST)
1 S/PDIF (BNC)
1 plastic fiber (Toslink)
1 AES/EBU (XLR)

581i Digital Preamp Inputs and Outputs

LIVING THE DREAM