TL Audio A4 User Manual
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CONTENTS.
CONTENTS. ...................................................................................................................................................2
INTRODUCTION..........................................................................................................................................3
W
HY
C
LASS
-A? ............................................................................................................................................4
W
HY
T
UBES
? ................................................................................................................................................4
W
HY
B
ALANCED
I/O? ..................................................................................................................................4
PRECAUTIONS.............................................................................................................................................6
BLOCK DIAGRAM ......................................................................................................................................7
INSTALLATION ...........................................................................................................................................8
AC Mains Supply......................................................................................................................................8
Inputs. .......................................................................................................................................................8
Insertion Points. .......................................................................................................................................9
Balanced XLR Outputs. .........................................................................................................................10
Level Selection. ......................................................................................................................................10
Ventilation. .............................................................................................................................................10
OPERATION................................................................................................................................................11
Input Gain stage.....................................................................................................................................11
Channel Pan Control.............................................................................................................................11
Input switching .......................................................................................................................................11
Tube Stage Drive and Peak LEDs. .......................................................................................................11
Tube Drive Control................................................................................................................................11
Insertion Points ......................................................................................................................................12
Output Gain............................................................................................................................................12
Metering .................................................................................................................................................12
SPECIFICATIONS......................................................................................................................................13
Power Requirements:.............................................................................................................................14
SERVICE.......................................................................................................................................................15