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SHOULD I USE A BALANCED OR UNBALANCED CONNECTION?
We recommend using the balanced analog output from your Wadia 830 Compact Disc Player connected
to a true balanced input. All things being equal, properly implemented balanced (also called differential)
circuitry sounds better than unbalanced circuitry. The Wadia 830 is a true balanced design. It generates
the inverted signal in the digital domain and all subsequent processing is done in balanced mode.
Your Wadia 830 is designed to maintain many of the advantages of true balanced design when using the
unbalanced outputs. In addition, the Wadia 830 output stage is capable of driving both types of outputs
simultaneously.
The balanced outputs use the standard audio pin configuration: pin 1 is ground, pin 2 is positive, and
pin 3 is negative.
SHOULD I BYPASS THE PREAMPLIFIER?
WHY
A preamplifier is unnecessary when using your Wadia 830 Compact Disc Player. The Wadia Direct
Connect technology incorporated into the Wadia 830 provides all the necessary control functions of a
preamp while the signal is still in the digital domain. This avoids the sonic degradation caused by analog
circuitry, switches, and wire. The Wadia Direct-Connect output stage can drive any power amplifier and
any interconnects, even very long lengths.
DOES THE WADIA DIGITAL VOLUME CONTROL COMPROMISE RESOLUTION?
The Wadia 830 Compact Disc Player uses the latest generation of Wadia's proprietary Digital Volume
Control. The volume level is adjusted in the digital domain by means of mathematical manipulation of the
signal, eliminating the distortion and noise that are inevitable with even the best analog volume controls.
While conventional thinking indicates that reducing the volume digitally can sacrifice low-level resolution,
Wadia has created an innovative solution. Wadia's patented DigiMaster digital filtering algorithm pro-
duces a 24-bit output rather than the 16 bits stored on the CD. This high-resolution signal is then used in
the computations which in turn reduce the volume level. This new signal is fed directly to the DAC chips.
Through this innovative method, the Wadia 830 maintains high resolution even at the lowest volume
control settings.
I BYPASS THE WADIA DIGITAL VOLUME CONTROL?
CAN
The Digital Volume Control can be bypassed by setting it to the maximum setting so that the front panel
bar-graph display shows only the top LED illuminated. The Wadia Digital Volume Control operates in
the digital domain; it is a computer program which performs calculations on the numeric values from the
CD recording. If the Digital Volume Control is set to its maximum, this computer program is bypassed.
There are no passive parts, switches contacts, resistors, or even circuit board traces associated with
the digital volume control.
WHAT ABOUT ANALOG SOURCES?
To use analog sources in an otherwise digital system, Wadia has introduced the Wadia 17
Analog-to-Digital converter. Now it is possible to use analog sources, such as a tuner, tape deck,
or even a turntable (in conjunction with a suitable phono stage) in your system without using a
conventional analog preamplifier. Consult your dealer for more information on the Wadia 17
and other future Wadia Analog-to-Digital products.
SHOULD I LEAVE THE WADIA 830 WITH THE POWER ON?
The Wadia 830 is designed to be left with the power on with no harm or wear to the unit. All motors
and laser circuitry turn off when the unit stops playing. Leaving the power on allows the circuitry to
remain at a constant operating temperature, providing better performance and longer life. Careful
listeners will notice that the sound of the Wadia 830 will improve steadily after the unit is powered-up.
A new unit will undergo more dramatic changes when power is applied for the first time. If you turn off
your Wadia 830 for more than an hour, you will find that the unit will undergo similar but less dramatic
improvement once power is reapplied. Depending on the resolution of the system and the attentiveness of
the listener, you may find that the sound continues to improve over the first several weeks of operation.
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