Mytek Digital 8X192 ADDA Users Manual

8X192 ADDA

8 CHANNEL MASTERING ANALOG TO DIGITAL

AND DIGITAL TO ANALOG CONVERTER

USER MANUAL

VER.FEB/2006

This manual may be updated

Download the newest version at:

http://www.mytekdigital.com/manuals/8x192adda_manual.pdf

For technical support, technical tips and support check:

http://www.mytekdigital.com/products/8x192adda.htm

or contact Mytek tech support at:

[e-mail]

or at:

tel. [phone]
fax.[phone]

Mytek

151 Lafayette Street 3rd Fl

New York NY 10013

USA

2

OWNER’S RECORD:

The serial number is located on the bottom of the unit. We suggest you record the
serial number in the space provided below. The firmware version label is located on
the 8 pin emprom chip located in a socket under the top lid. The firmware can be
updated and chip replaced by the user if necessary. Please be sure to return your
completed warranty card.

8x192 ADDA Serial NO.:

Firmware Version:

Purchase Date:

Dealer/ Contact:

Cards Installed, Serial ##

WARRANTY

This 8X192ADDA digital audio converter is warranted by Mytek to the original
purchaser against defects in workmanship and materials used in manufacture for a
period of one year from the date of purchase. Faults due to customer misuse,
unauthorized modifications or accidents are not covered by this warranty.

No other warranty is expressed or implied.
Any faulty unit should be sent, shipping prepaid, to the manufacturer service center.
Prior to shipping the client should obtain from Mytek an RMA# for warranty services.
Units sent without RMA# will not be accepted.

Mytek extends affordable repair service for all units manufactured to date that are
not covered by this Warranty.

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Introduction.....................................................…………………………….5

Signal Flow...............................…………………………………….............6

Block Schematics...........................................................................……...7

Back Panel Connections, Cable Wiring.........................................……...8

Front Panel Controls................................................……………...………9

Input/output Gain and other internal adjustments.....……......................10

Setting Clocks and Signal Sources................................................…....12

Specifications............................................................................…..........16

4

INTRODUCTION

Mytek 8X192 ADDA is an 8 channel Analog to Digital and an 8 channel Digital to Analog
converter maticoulsly designed to provide the highest quality signal path. No compromises
have been made to sound quality, and we feel that this is the best sounding Mytek
converter to date. In trial tests in comparison with other hi-end brands this unit provided the
same or better sonic performance, which makes it suitable for the most demanding
mastering and recording applications.

Users choose Mytek converters primarily for their outstanding sonic quality. The sound of
Mytek converters can best be described as "transparent". We design our converters to be
as faithful to the original signal as possible, rather than adhering the philosophy of some
other manufacturers who offer "analog" or "tube" sounding converters. Mytek converters are
designed to be as close to a straight wire as possible,which is especially evident when used
at full 24/192 or DSD resolution.

On the Mytek website you can find and download various sound samples to evaluate the
8X192's sound quality and compare it to the sound of other high end converter units. Please
log onto: http://www.mytekdigital.com to download samples. Thanks to the wide choice of
daughter interface cards (DIO Cards), the 8X192 becomes an 8 channel "digital swiss army
knife",which allows the user to adapt converter performance to most studio setups and
situations."

In addition to typical converter functions, the Mytek 8X192 features a unique analog mix bus
designed with transparency in mind, a monitor section with a mastering grade stepped
attenuator, and a hi-end headphone amp.

The built in CX 797 clock generator with multiple wordclock outputs is
the best source for stable studio house clock, and the 8x192 will perform
best using this internal clock.

5

SIGNAL FLOW

The 8X192 ADDA has two independent signal paths within the unit. They offer independent
signal paths but must operate at the same clock source and sampling frequency. It's
recommended that as much as possible the unit should be clocked from its internal CX 797
clock generator. This mode offers minimum jitter allowin for the best performance and
system stability. Associated equipment should be slaved to 8X192 clock outputs whenever
possible. There is no measurable improvement (rather typically a degradation) when the
unit is clocked by external clock generator.

1) The first path is built around the ADC converter and essentially defines what input is
selected to be sent to digital outputs. All digital outputs are simultaneous, so if the analog
input is engaged, the analog signal is converted to digital and sent to all installed digital
outputs.

If the digital input is selected, only digital format conversion is performed, and the signal is
then passed to the digital outputs. There is no SRC or any kind of digital processing
induced. When operating in DSD mode only the inputs and outputs compatible with DSD
format are active.

"2) The second signal path is built around the DAC. It defines what signal is present at the
analog outputs. The selected digital signal is converted to analog. If the analog input is
selected, it's first converted to digital by the ADC and then sent to the DAC and converted
back to analog.

ANALOG IN

AES/EBU IN
DIOCARD1 IN
DIOCARD2 IN

"ANALOG IN"

AES/EBU IN
DIOCARD1 IN
DIOCARD2 IN

ADC

PATH #1

TO ALL DIGITAL OUTS

SELECTOR
"INPUT TO
DIGITAL OUTS"

PATH #2

SELECTOR
"INPUT TO
ANALOG OUTS"

SUMM.
BUS/ PAIR
MONITOR
SELECTOR

DAC

STEPPED
1dB
ATTENUATOR

LEFT

STEREO
XLROUTS

RIGHT

HEADPHONE
AMP

TO 8 DISCRETE
ANALOG OUTS

6