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
