Wadia Digital 850 User Manual

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COMPACT DISC PLAYER  
WADIA 850  
TABLE OF CONTENTS  
Brief History of Wadia.  
Preliminaries  
Installation and Set-up  
of your Wadia 850  
installing the Spiked Feet.  
Connecting to Your System  
Connecting to AC Power  
Connect Directly to a Power Amplifier  
Using with  
a
Preamplifier.  
Opitimizing the Output Level  
Optional Digital Inputs/Outputs  
Connecting Digital Components  
6
Choosing  
a
Digital Cable.  
6
7
Frequently asked questions.  
Should I use Balanced or Unbalanced connection?  
Why Should I bypass the Preamplifier?  
Does the Wadia Digital Volume Control compromise resolution?  
Can I bypass the Wadia Digital Volume Control?  
What about Analog Sources?  
Should I leave the Wadia 850 with the power on?  
8
9
Front Panel Controls  
Display Features  
General Operation  
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
10  
11  
11  
Remote Control Operation  
Digital Volume Control.  
Adjusting the Volume.  
S e l e c t i n g a n l n p u t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . l l  
11  
11  
Inverting Absolute Phase.  
Turning Display On/Off.  
M u t e M o d e s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . l l  
DSP-Software Mute  
Output-Relay Mute  
12  
Track Forward/Rev.  
..12  
Pause.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
12  
..13  
Programming the CD Transport  
Single.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
..13  
Time.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Space..  
13  
..13  
A/B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Appendices  
14  
14  
15  
Software License Agreement  
Environmental Care  
Important Safety Precautions  
2
COMPACT DISC PLAYER  
850  
PRELIMINARIES  
All of us at Wadia would like to offer thanks and congratulations to you  
for purchasing the Wadia 850 Compact Disc Player. We sincerely believe  
that your Wadia 850 will bring you many years of musical pleasure  
and satisfaction.  
While every new owner is anxious to begin listening, we encourage you to  
take a few minutes to read this manual and familiarize yourself with the full  
capabilities of the Wadia 850 Compact Disc Player.  
you are in a big hurry to listen, please read the sections of this  
manual where the symbol at  
is shown.  
Wadia Digital Corporation was founded in 1988, making it one of the  
oldest digital audio companies in existence. Wadia was formed by a  
group of engineers from Minneapolis-based 3M (Minnesota Mining  
and Manufacturing) who had compiled many years of experience in  
advanced digital and telecommunications research and development.  
Brief History of  
Wadia Digital  
In the early  
this group had become intrigued by the emerging CD  
technology. Disappointed by the sound of early CD players, they examined  
the designs and found them to be unsophisticated compared with technology  
available in other fields of design. In response, they founded Wadia Digital  
a company based on the philosophy of applying advanced technology to  
improve the performance of digital home entertainment equipment.  
Wadia’s first product, the Wadia 2000 Decoding Computer, was a break-  
through. For many listeners, it proved the viability of Compact Disc as  
a musically involving format. Ever since, Wadia has continued to develop  
on the original technology refining, listening and improving along the way.  
Wadia’s modular designs mean that new technology is available to current  
owners in the form of cost effective upgrades. Here is a brief list of  
technological innovations Wadia engineers have pioneered over  
the past ten years:  
l
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1988: First outboard DA converter  
1988: DigiMaster patented algorithm  
(filter optimized for reproducing music)  
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1989: First to apply glass fiber optics to home audio  
1990: First to recognize jitter as a source of audible distortion  
1992: First to perfect digital volume control  
1994: First Compact Disc player featuring digital input capability  
Now in our tenth year, Wadia continues to re-define the limits of digital  
music playback. We are proud to introduce the Wadia 850, one of the  
most innovative design to date from Wadia; a breakthrough in sonic  
performance and a strong statement of our years of dedication to  
the pursuit of musical quality.  
3
WADIA 850  
COMPACT DISC PLAYER  
INSTALLATION AND SET-UP  
Unpacking  
Use care in unpacking your Wadia 850 Compact Disc Player. Inspect it for  
any shipping damage and call your dealer immediately if any is found.  
Do not plug your Wadia 850 Compact Disc Player into an  
AC outlet if you find shipping damage.  
We advise saving all packing materials so that the unit can be easily and  
safely shipped if the need arises.  
Provided with the Wadia 850 are the following accessories:  
Accessories  
l
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AC power cord  
Four spiked feet with threaded studs  
Four steel coasters  
Remote Control  
Three type MA batteries  
Installing the  
Spiked Feet  
With the unit still positioned on its side, screw one of the spiked feet into  
the bottom of each corner post.  
Position the Wadia 850 where you would like it to reside in your system.  
We recommend choosing a solid, non-resonant, level, surface for best  
performance. If this surface is susceptible to damage, place one of the  
steel coasters under each spiked foot.  
Do not tip the unit onto the back panel.  
This can damage input and/or output connectors.  
4
WADIA 850  
COMPACT DISC PLAYER  
CONNECTING THE  
WADIA 850  
TO YOUR SYSTEM  
CHECK  
VOLTAGE  
HERE!  
Check to make sure your Wadia 850 Compact Disc Player has been  
manufactured for operation at your AC line voltage. Attempting to use  
your Wadia 850 Compact Disc Player at any voltage other than specified  
on the rear of the unit may damage the unit. Damage caused by improper  
operation is not covered by Wadia warranty. If the voltage specified is  
different from your AC voltage, contact your Wadia dealer.  
Connecting the  
Wadia 850  
The best performance is obtained when the Wadia 850 is plugged  
directly into the wall with the power cord provided. The Wadia 850 has  
power conditioning, surge suppression and an extremely sophisticated  
overall protection scheme. It should not be necessary to use surge  
protectors, power conditioners or aftermarket power cords. If you wish  
to AC Power  
to experiment with any of these devices, work closely with your dealer  
and most of all, trust your own ears.  
-
Connecting the  
Wadia 850 Compact  
Disc Player Directly to  
a Power Amplifier  
Avoid allowing static shocks to be applied to the inputs or outputs. To  
prevent static shocks, touch any grounded surface, such as the Wadia 850  
chassis, before connecting or removing a cable. It is unlikely that a static  
shock will damage the unit, but it may cause the Wadia 850 Compact Disc  
Player circuitry to “lock-up” (see Lock-Up under Trouble Shooting).  
Inputs and outputs can be safely connected to the Wadia 850  
Compact Disc Player:  
1. Before the unit is powered up  
2. When the unit is in Relay-Mute mode  
(See Mute Modes in Genera/ Operation)  
We strongly recommend that you use your Wadia 850 Compact Disc Player  
connected directly to your power amplifier. Even if you purchased your Wadia  
850 with the intention of connecting it to your preamplifier, we suggest that  
you try direct connection to your amplifier. Many listeners are surprised by  
the improvement in performance over even the most expensive preamplifiers.  
To connect your Wadia 850 to a power amplifier, ensure that your power  
amplifier is turned off, then simply connect your analog interconnects from  
the Wadia 850 analog outputs to the amplifier’s inputs.  
Using the  
Wadia 850 with a  
Preamplifier  
While the Wadia 850 Compact Disc Player was designed to be used without  
a preamplifier, no compromises were made in its design that will prevent  
excellent operation in a conventional system with a preamplifier.  
When using a preamplifier, bypass the Wadia 850 volume control by setting  
it to its maximum setting.  
COMPACT DISC PLAYER  
WADIA 850  
Best performance is obtained when operating the Wadia Digital Volume  
Control in the top half of its range. If needed, the maximum output level  
of your Wadia 850 can be adjusted to match the overall sensitivity of your  
system so that the critical listening will take place with the volume control  
operating in the top half of its range.  
Optimizing the  
Output Level  
The maximum output level of the Wadia 850 Compact Disc Player is adjust-  
able by means of a set of internal switches. The Wadia 850 is factory set at  
4-2 volts to accommodate the most common range of system sensitivity. If  
you find that your typical volume level during critical listening is below 50 on  
the volume display, then it may be advantageous to use a different setting.  
The output level is not user adjustable. If you would like to change the  
output level, consult your dealer.  
Your Wadia 850 Compact Disc Player can be retrofitted to include digital  
inputs and/or outputs. Consult your dealer for information on this option.  
Optional Digital  
Inputs/Outputs  
If your Wadia 850 is equipped with the optional digital inputs,  
the configuration is as follows:  
Connecting Other  
Digital Components  
to your Wadia 850  
Input 1:  
Input 2:  
Input 3:  
Input 4:  
Glass-fiber optical  
Coaxial with BNC connector  
Coaxial with BNC connector  
Plastic-optical TOSLINK  
The Wadia 850 will automatically adjust to the sampling rate of any of the  
standard digital audio formats.  
If your Wadia 850 is equipped with the optional digital outputs,  
the configuration is as follows:  
Output 1: Glass-fiber optical  
Output 2: Coaxial with BNC connector  
The digital output signal is active at all times when a CD is playing in the  
transport.  
While the Wadia 850 supports several transmission formats for digital  
audio, we recommend using a high quality glass-fiber cable such as the  
one available from Wadia. Wadia Digital was the first company to use glass  
fiber-optic data transmission in digital audio. We have continually improved  
this format and believe that it offers the best, most consistent  
performance of all the available options.  
Choosing a  
Digital Cable  
Based on our experience, here is a list of digital interface methods in  
descending order of performance:  
1. Glass optical  
(as implemented by Wadia, with high quality glass optical cable)  
2. Coaxial cable using BNC connector  
3. Coaxial cable using RCA connector  
4. TOSLINK plastic-optical cable  
The quality of any of these transmission methods depends on the quality  
of the cable and the sophistication of the transmitter and receiver.  
If you are using a coaxial cable we recommend that you have the cable  
terminated with a BNC connector. This will provide higher performance than  
an RCA connector. If you purchased the optional digital inputs or outputs, an  
RCA/BNC adaptor is provided. The adaptor can be used for experimentation  
between different types of coaxial cables.  
Again, we highly recommend that you take advantage of your dealer’s  
experience and, most importantly, trust your ears.  
6
WADIA 850  
COMPACT DISC PLAYER  
FREQUENTLY ASKED QUESTIONS  
Should I use a Balanced or Unbalanced connection?  
We recommend you use the balanced analog output from your Wadia 850 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 850 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 850 is designed to maintain many of the advantages of true balanced design when using  
the unbalanced outputs. In addition, the Wadia 850 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.  
Why should I bypass the Preamplifier?  
A preamplifier is unnecessary when using your Wadia 850 Compact Disc Player. The Wadia 850  
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 850  
output stage can drive any power amplifier and any interconnects, even very long lengths.  
Does the Wadia Digital Volume Control compromise resolution?  
The Wadia 850 Compact Disc Player uses the latest generation of Wadia’s proprietary digital volume  
control. The volume level can be varied 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 digital filtering algorithm produces  
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 850 maintains high resolution even at the lowest volume  
control settings.  
Can I bypass the Wadia Digital Volume Control?  
The Digital Volume control can be bypassed by setting the Volume Control to its maximum setting  
so that the front panel display shows a volume level of 99.  
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 Volume Control is set to its  
maximum, 99 on the front panel display, this computer program is bypassed.  
What about Analog Sources?  
In order to fully realize the potential of this type of 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 850 with the power on?  
The Wadia 850 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. If desired, the front display can be turned off (see  
Turning off the Display under Remote Operation). Leaving the power on allows the circuitry to remain  
in thermal stability, which provides better performance and longer life. Careful listeners will notice that the  
sound of the Wadia 850 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 850 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. Although there are many  
theories on why this occurs, none have been proven. However, years of listening experience has  
confirmed this phenomenon.  
7
WADIA 850  
COMPACT DISC PLAYER  
GENERAL OPERATION  
Using the switch located directly above the AC power input, turn the switch  
to the ON position.  
Turning on  
the Wadia 850  
FRONT PANEL CONTROLS  
The basic controls necessary to operate the Wadia 850 CD Player are  
located on the front panel of the unit.  
VOLUME UP  
Increase the volume by l/2 dB  
PREVIOUS TRACK  
PLAY NEXT TRACK  
/
This button will cause the unit to  
move to the previous track and  
begin playing.  
This button will cause the  
unit to advance to the next  
track and begin playing.  
OPEN  
/
CLOSE STOP  
/
If the drawer is open, pushing this  
button will CLOSE the drawer.  
If the CD is playing, pushing this  
button will STOP playing.  
If the unit is not playing, pushing  
this button will open the drawer.  
VOLUME DOWN  
Decrease the volume by l/2 dB  
Example:  
To open the drawer while the unit  
is playing, push the button once to  
stop, and once more to open.  
8
COMPACT DISC PLAYER  
WADIA 850  
DISPLAY FEATURES  
The Wadia 850 Compact Disc Player features a two part display screen.  
The left section shows the status of the CD transport. The right section of the  
display indicates preamp functions.  
Display Screen  
VOLUME:  
Indicated by two digit  
numeric display.  
TRANSPORT STATUS SCREEN:  
Indicates transport operations.  
PHASE:  
Green indicates non-inverted (standard mode).  
Red indicates inverted.  
\
I
TRACK  
TOTAL REMAIN  
AUTO CUE  
INDEX  
PROGRAM  
SINGLE  
DELETE  
MUTE  
Illuminates when unit is muted.  
will flash when pause is  
engaged.  
Units with optional digital inputs:  
This indicator will also show  
selected digital input numerically.  
9
WADIA 850  
COMPACT DISC PLAYER  
REMOTE CONTROL OPERATION  
The remote control included with your Wadia 850 Compact Disc Player is a  
new design featuring controls that have been carefully laid out for the most  
convenient operation.  
The Wadia 850 remote control requires three type&M batteries, which  
you will find in the accessories kit. To install the batteries, remove the battery  
cover on the back of the remote by removing the phillips head screw.  
Insert the batteries as indicated on the battery holders.  
Transport  
Programming  
Display  
Direct Access  
Enter  
\
Phase Invert  
INPUT  
Input Select  
Drawer Open /Close  
0
Pause  
Play  
Search  
stop  
Volume  
Track Forward /Rev  
A/B Repeat  
Repeat  
Single Track  
Transport Time  
Mode  
Index  
10  
COMPACT DISC PLAYER  
WADIA 850  
Whenever the volume control keys are pressed, the volume for both  
Adjusting the Volume  
channels will be increased or decreased by an increment of 1 on the display  
screen. The range of the volume control is from 1 to 99, with each step  
representing 0.5 dB change in volume.  
The Wadia 850 Compact Disc Player has four digital inputs, plus the internal  
CD drive. Any of the inputs can be selected from the remote control by  
pressing the input key. Each time the input key is pressed, the next input is  
selected. For example, if you are listening to CD input and you press the  
input select, Input 1 will be selected, press it again, and Input 2 will be  
selected and so on. After Input 4, the list will begin again with the CD input.  
Selecting an Input  
(on units with  
optional digital  
inputs)  
The Wadia 850 has the ability to invert absolute phase in the digital domain.  
Pressing the Phase Invert key on the remote control will cause the Wadia  
850 to invert phase; pressing it again will switch the phase back to normal.  
Phase is indicated with a green (normal phase) or red (inverted phase)  
LED display.  
Inverting Absolute  
Phase  
By pressing the Display On or Off key, the Wadia 850 display can be turned  
off completely.  
Turning Display  
On/Off  
If the display is turned off, it will reappear briefly whenever a Wadia 850  
function key on the remote control is pressed.  
The Wadia 850 Compact Disc Player has two mute modes that are auto-  
matically implemented under different circumstances.  
Mute Modes  
When the Mute key is pressed on the remote control, the Wadia 850  
Compact Disc Player’s DSP engine transmits a stream of zero signal level  
samples to the DAC section, which results in zero output.  
DSP-Software Mute  
The Wadia 850 Compact Disc Player has mute relay connected between the  
positive and negative outputs. When this relay is engaged, it connects the  
positive output to the negative output, reducing the output to zero. This  
relay, which produces an audible click when it engages or disengages, is  
not in the music signal path. The mute relay is engaged:  
1. When the Wadia 850 Compact Disc Player detects AC input level below  
its minimum operating range.  
Output-Relay Mute  
2. Each time the Wadia 850 Compact Disc Player power switch is turned on.  
3. When the volume control is set to zero AND the mute key on the remote  
control is pressed.  
When the Wadia 850 is in either Mute Mode, the Display will indicate this by  
displaying the word, “MUTE.”  
11  
COMPACT DISC PLAYER  
WADIA 850  
REMOTE CONTROL OPERATION (continued)  
Pressing these buttons allows access to the previous or next index  
point within a track that has such indexed sections.  
TRACK FORWARD/REV: Pressing these buttons allows access to the  
previous or next track on a disc.  
SEARCH: Pressing these buttons allows fast reverse or fast forward access  
through a track.  
STOP: Pressing this button while a Compact Disc is playing stops PLAY.  
PAUSE: Pressing this button, while a Compact Disc is playing, suspends  
PLAY. Pressing the PLAY button will resume play at the point where the  
pause button was pressed.  
PLAY: After a Compact Disc has been loaded into the drawer, pressing  
this button plays the disc beginning with the first track on the disc or in  
a sequenced program. Pressing this button while the drawer is open,  
closes the drawer and begins play with the first track on the disc or in a  
sequenced program.  
PROGRAMMING THE CD TRANSPORT  
Program: Pressing this button enters all tracks subsequently chosen with  
the numeric keys (up to a total of 20 selections) as par-t of a programmed  
sequence.  
Programming a sequence of tracks can be done either in the stop mode or  
in the play mode.  
To program a sequence of tracks from a compact disc while in the stop  
mode, first press the program button. The program indicator will illuminate in  
the display window. Next, press the numeric buttons of the tracks you would  
like to program in the sequence desired. The number of each selected track  
will be indicated under the track indicator, the location of that track within the  
program (the playing order) of the tracks selected will be indicated in the  
area where index is usually identified, and the total program playback time  
of the sequence will be updated as each track is programmed.  
To program a sequence of tracks from a compact disc while in the play  
mode, the procedure is the same. The only difference is that the total  
program’s playback time will not be displayed.  
A program will continue to be held in memory, even after that  
program has been completely played.  
When programmed playback is ended by pressing the stop button, the  
program will continue to be held in memory. However, if the stop button is  
pressed a second time, the program indicator on the display will go out  
and the programmed contents will be erased from memory.  
12  
WADIA 850  
COMPACT DISC PLAYER  
Single: To play a single track, press the single button (the single indicator will  
light in the display window), then press the numeric button(s) which corre-  
spond(s) to the track you would like to play. The transport will search for the  
selected track, and playback will start from the beginning of that track. At the  
conclusion of the track, the transport will enter the stop mode.  
To repeat one single track, press the single button (the single indicator will  
illuminate in the display window), then press the repeat indicator (the repeat  
button will illuminate in the display window), and then press the numeric  
button(s) which correspond(s) to the track you would like to repeat. Playback  
of the track selected will begin immediately. At the conclusion of the track the  
transport will return to the beginning of that track again, and in this way the  
selected track will be repeated.  
Delete: This button is the opposite of normal programming. Pressing this  
button while a program is being entered, erases the entire entered program.  
To play an entire disc, except for specific tracks that you do not want to hear,  
press this button and then the numeric keys corresponding the tracks you  
would like to delete (up to 20 selections).  
Clear: When the program indicator is illuminated in the display window.  
To eliminate a particular track from a programmed sequence, first press the  
check button until the track which you would like to eliminate is selected.  
Then press the clear button which will clear that particular track from memory.  
Time: This button switches between the various time modes on the display.  
Before play, the total time on the disc, or in a sequence program, 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 remaining  
time on the entire disc, or in a sequenced program (total remain).  
Auto Space: Pressing this button will provide a four second space between  
tracks on disc, irrespective of the actual time between tracks on disc.  
Check: When a sequence of tracks has been programmed, the check button  
can be used to review the contents of that program. After a program has been  
entered, but before playback has begun, by pressing the check button once,  
the first programmed track number, its position in the sequence of tracks that  
have been programmed, and the playing time of the entire sequence, will be  
displayed. Each subsequent pressing of the check button will provide similar  
details as you move through each of the programmed tracks.  
The programmed contents of a sequence can also be checked during play-  
back, however, the total program’s playback time will not be displayed.  
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. Pressing this button once, following pressing the single button, will  
cause the track that is playing, or has been selected, to repeat continuously.  
Pressing either the stop or open buttons will also take the transport out of  
the repeat mode.  
A/B: This button is used to define a section of a disc that is to be repeated  
continuously. Pressing this button once defines the beginning point (A) of the  
section to be repeated and pressing this button again defines the ending  
point (B) of the section repeated. Pressing the button a third time will  
disengage the A/B procedure.  
13  
WADIA 850  
COMPACT DISC PLAYER  
APPENDICES  
Lock-up  
Troubleshooting  
If the Wadia 850 experiences a powerful static shock or sudden AC surge,  
it is possible to “lock-up” the computer circuitry. A locked-up computer may  
result in erratic display, no output, and no response to remote commands.  
If your Wadia 850 should lock-up, unplug the AC cord. Wait at least 30  
seconds before re-plugging in the unit. If the unit still does not operate  
normally, contact your dealer.  
Software License  
Agreement  
IMPORTANT! THIS AGREEMENT SETS FORTH TERMS AND CONDITIONS  
FOR THE DigiMaster SOFTWARE.  
The DigiMaster software is copyrighted and patented. It is the property  
of Wadia Digital Corporation of River Falls, Wisconsin.  
Title to Licensed Software is not transferred to the customer. The customer  
is granted a nonexclusive license to use the Licensed Software on a  
single CD Player basis. The Licensed Software cannot be shared among  
multiple CD Players. Each CD Player must have it’s own separately  
Licensed Software.  
At Wadia Digital Corp.‘s sole discretion, Wadia Digital shall provide  
customer with updates of the Licensed Software. Wadia Digital retains  
the right to provide the Licensed Software updates for a fee. The customer  
may refuse to accept such Licensed Software updates.  
Environmental Care  
Wadia Digital makes every effort to be an environmentally conservative  
company. We appreciate it if our customers join our efforts. Please  
dispose of batteries and packing material in a manner that is  
environmentally responsible.  
14  
WADIA 850  
COMPACT DISC PLAYER  
! IMPORTANT SAFETY PRECAUTIONS !  
To get the best performance from your Wadia 850 CD Player, and for your  
own safety, please read and follow these important safety instructions.  
1.  
Before operating the Wadia 850 CD Player, please read all operating  
and safety instructions.  
2.  
Never place the Wadia 850 CD Player near heat sources such as  
radiators, fireplaces, stove, or other appliances that produce heat.  
Avoid placing the Wadia 850 CD Player where it will be subject to  
direct sunlight or low temperatures.  
3. This product is equipped with a three prong AC power cord which  
includes an earth ground connection. To prevent shock hazard, all three  
connectors must always be used. If your electrical outlets will not  
accept this type of plug, an adapter may be purchased. If an adapter is  
necessary, be sure it is an approved type and that it is used properly,  
supplying an earth ground. If you are not sure of the integrity of your  
home’s electrical system, contact a licensed electrician for assistance.  
4.  
AC extension cords are not recommended for use with this product.  
If an extension cord must be used, be sure it is an approved type and  
has sufficient current carrying capacity to power this product.  
5.  
Before cleaning the Wadia 850 Compact Disc Player, always disconnect  
the power supply cord. Use a soft cloth and, if necessary, dampen  
with plain water. Never apply water, or any other cleaner, directly to  
the chassis.  
6. If you smell smoke, or an abnormal smell, immediately unplug the  
Wadia 850 Compact Disc Player from the power supply and contact  
your Wadia dealer.  
7. Unplug unit if it becomes wet.  
8. Replace fuse only with the exact type originally included.  
100 volt: (1) 1 amp Slo-Blo  
120 volt: (1) 1 amp Slo-Blo  
220 volt: (2) l/2 amp Slo-Blo  
240 volt: (2) l/2 amp Slo-Blo  
THERE ARE NO USER SERVICEABLE PARTS INSIDE THE WADIA  
850 CD PLAYER!  
Do not attempt to repair or modify your Wadia 850 CD Player.  
All service should be performed by qualified service personnel.  
Do not open the unit while it is attached to the AC outlet.  
9.  
.
.
.
15  
COMPACT DISC PLAYER  
WADIA 850  
SPECIFICATIONS  
32 Times Resampling DigiMaster  
Decoding Software  
24 Bits  
Digital Processing  
Capability  
Digital Resolution  
21 Bits  
One pair of Balanced (XLR); One pair of Unbalanced (RCA).  
Analog Outputs  
Both can be used simultaneously.  
1
1
-
Glass Fiber-Optic (ST), 1 SP/DIF (BNC).  
-
Digital Outputs  
(optional)  
-
Glass Fiber-Optic (ST), 2  
-
SP/DIF (BNC), 1  
-
Plastic Optical (Toslink).  
Digital Inputs  
(optional)  
Output Impedance  
Power Consumption  
Weight  
Less than 15 ohms  
25 watts  
42 Ibs. Unit itself; 49 Ibs. Shipping Weight  
17” Wide, 16” Deep (not including connectors), 7” High (including spiked feet)  
Dimensions  
WARRANTY  
This Warranty covers the Wadia 850 Compact Disc Player. Wadia Digital warrants that this product shall be free  
from defects in materials and workmanship for:  
1
year for the transport mechanism’s mechanical structure and associated electronics,  
and 5 years for all other parts of the product (excluding batteries).  
The warranty period begins at the date of sale and is subject to the following requirements and understandings:  
1) The product must not have been modified in any manner whatsoever, or the warranty is immediately voided.  
2) The product must not have been stored in humid, damp environment; nor subjected to weather, water, or  
salt spray.  
3) During the warranty period Wadia Digital will repair the Wadia 850 Compact Disc Player to working order, or,  
at Wadia’s option, replace a defective Wadia 850 with a similar available product, at no cost to the owner for  
labor, materials, and shipping charges from Wadia Digital, River Falls, Wisconsin.  
4) Wadia Digital shall not, under any circumstances, be liable for any incidental or consequential damages  
arising from the loss of property or other damage or losses due to the failure of a Wadia 850 Compact Disc  
Player. Wadia Digital will not pay for loss of use or inconvenience caused by the failure of a Wadia 850  
Compact Disc Player. Wadia Digital will not pay for damage caused to other audio components caused by  
the failure of the Wadia 850 Compact Disc Player within the limits allowed by State Law.  
5) All repairs performed after the warranty period has expired will be billed to the owner and will carry a 90 day  
warranty on parts and labor.  
6) The customer is responsible for the shipping charges for all repairs, warranty or non-warranty, shipped to  
Wadia Digital. Wadia Digital will pay return shipping to the customer or dealer (within the United States) for  
all warranty repairs. Special shipping methods or services will not be covered by Wadia Digital.  
7) All repairs must be serviced by Wadia Digital or an authorized service facility.  
8) This product is only warranted in the country of original sale by Wadia Digital.  
REV. A  
16  
Wa dia Digita l Corpora tion  
624 Troy Stre e t Rive r Fa lls, WI 54022 · (715) 426-5900 · FAX (715) 426 5665  

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