III
The ART Tubeopto 8™
8-Channel Tube Microphone Preamplifier Optical Interface
IMPORTANT SAFETY INSTRUCTIONS – READ FIRST .............................................. II
INTRODUCTION..........................................................................................................1
INSTALLATION...........................................................................................................1
AC Power Hookup..................................................................................................................................................................................1
Analog Audio Connections .....................................................................................................................................................................1
CONTROLS and JACKS..............................................................................................2
FRONT PANEL ......................................................................................................................................................................................2
Instrument Input .....................................................................................................................................................................................2
Gain Control ...........................................................................................................................................................................................2
Pad Switch .............................................................................................................................................................................................2
+48V Switches........................................................................................................................................................................................3
Phase Switch..........................................................................................................................................................................................3
Low Cut Switch.......................................................................................................................................................................................3
LED Meter ..............................................................................................................................................................................................3
Output Control........................................................................................................................................................................................3
Sample Rate/Sync Switch ......................................................................................................................................................................3
Sample Rate LEDs.................................................................................................................................................................................4
Power Switch..........................................................................................................................................................................................4
REAR PANEL.........................................................................................................................................................................................4
Balanced Input Jacks – XLR & 1/4” TRS Combo Jacks .........................................................................................................................4
Balanced Output Jacks...........................................................................................................................................................................4
Output Level Switch ...............................................................................................................................................................................4
Wordclock Input and Thru Jacks ............................................................................................................................................................5
ADAT Jacks............................................................................................................................................................................................5
HARDWARE OPERATION............................................................................................6
How to adjust the preamplifier controls for the lowest noise...................................................................................................................6
How to set the Output Level switch (on the rear panel)..........................................................................................................................6
Changing the sample rate ......................................................................................................................................................................6
Using the wordclock input.......................................................................................................................................................................7
APPLICATIONS...........................................................................................................8
Typical applications ................................................................................................................................................................................8
Troubleshooting......................................................................................................................................................................................9
SERVICE...................................................................................................................11
Tubeopto 8™ SPECIFICATIONS ...............................................................................12
List of Figures
FIGURE 1 - Input Channel....................................................................................................................................2
FIGURE 2 - Sample Rate Section ........................................................................................................................3
FIGURE 3 - Rear Panel........................................................................................................................................4
FIGURE 4 - Block Diagram...................................................................................................................................5
FIGURE 5 - Wordclock Connections ....................................................................................................................7
