Pro VLA II
PROFESSIONAL TWO CHANNEL VACTROL
®
/TUBE LEVELING AMPLIFIER
IMPORTANT SAFETY INSTRUCTIONS – READ FIRST ..........................................................................1
INTRODUCTION....................................................................................................................................3
INSTALLATION .....................................................................................................................................3
Unpacking .............................................................................................................................................................................................. 4
AC Power Hookup..................................................................................................................................................................................4
Analog Audio Connections .....................................................................................................................................................................4
FRONT PANEL CONTROLS and INDICATORS ......................................................................................5
Power .....................................................................................................................................................................................................5
Input Threshold Control ..........................................................................................................................................................................5
Ratio Control ..........................................................................................................................................................................................5
Output Level Control ..............................................................................................................................................................................6
Attack Control......................................................................................................................................................................................... 6
Release Control......................................................................................................................................................................................7
Gain Reduction LED Meter.....................................................................................................................................................................7
Bypass Switch ........................................................................................................................................................................................7
VU Meter ................................................................................................................................................................................................ 7
VU Meter Source Switch ........................................................................................................................................................................ 7
LED Output Meter .................................................................................................................................................................................. 8
The Link Switch ......................................................................................................................................................................................8
REAR PANEL I/O ...................................................................................................................................9
Balanced Inputs......................................................................................................................................................................................9
Balanced Outputs.................................................................................................................................................................................10
I/O Level Switch ...................................................................................................................................................................................10
APPLICATIONS ...................................................................................................................................11
Compressor/ Limiter ............................................................................................................................................................................. 11
Stereo Mix and Mastering.....................................................................................................................................................................11
Vocal and Instrument Leveling .............................................................................................................................................................11
WARRANTY INFORMATION................................................................................................................12
SERVICE .............................................................................................................................................13
SPECIFICATIONS................................................................................................................................14
LIST OF FIGURES
FIGURE 1 – Channel 1 Controls............................................................................................................ 6
FIGURE 2 – LED Output Meter and Link Switch................................................................................... 8
FIGURE 3 – Rear Panel ....................................................................................................................... 10
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