ART Pro Audio ProChannel II - Manual (Page 4)

3
Pro Channel II™
Tube Preamp - Opto compressor - EQ
IMPORTANT SAFETY INSTRUCTIONS – READ FIRST .......................................................................... 2
INTRODUCTION .................................................................................................................................... 4
INSTALLATION ..................................................................................................................................... 4
AC Power Hookup .................................................................................................................................................................................. 4
Analog Audio Connections ..................................................................................................................................................................... 4
FRONT PANEL CONTROLS and JACKS ................................................................................................ 5
Mic Preamp Controls .............................................................................................................................................................................. 5
Instrument Input ..................................................................................................................................................................................... 5
Gain Control ........................................................................................................................................................................................... 5
Impedance Control ................................................................................................................................................................................. 5
GAIN Switch ........................................................................................................................................................................................... 5
Phantom Power Switch .......................................................................................................................................................................... 5
Invert Switch ........................................................................................................................................................................................... 5
Low Cut Control ...................................................................................................................................................................................... 5
Preamp Output Control........................................................................................................................................................................... 5
Tube Voltage Switch .............................................................................................................................................................................. 6
Compressor Controls ............................................................................................................................................................................. 7
Threshold Control ................................................................................................................................................................................... 7
Attack Control ......................................................................................................................................................................................... 8
Release Control ...................................................................................................................................................................................... 8
Compressor Output Control .................................................................................................................................................................... 8
Gain Reduction LED Meter ..................................................................................................................................................................... 8
Semi-Parametric EQ .............................................................................................................................................................................. 9
EQ Bypass Switch .................................................................................................................................................................................. 9
CLIP LED ............................................................................................................................................................................................... 9
Master Output Control .......................................................................................................................................................................... 10
Output Meters ....................................................................................................................................................................................... 10
VU Meter Switches ............................................................................................................................................................................... 10
REAR PANEL CONNECTIONS ............................................................................................................. 12
INPUT Jack .......................................................................................................................................................................................... 12
PREAMP OUT Jack ............................................................................................................................................................................. 12
COMP IN Jack ...................................................................................................................................................................................... 12
COMP OUT Jack .................................................................................................................................................................................. 12
EQ IN Jack ........................................................................................................................................................................................... 13
OUTPUT Jacks .................................................................................................................................................................................... 13
OUTPUT LEVEL Switch ....................................................................................................................................................................... 13
APPLICATIONS ................................................................................................................................... 14
Bypassing Components Of The Pro Channel II™ ................................................................................................................................ 14
Optimizing The Preamp For Lowest Noise ........................................................................................................................................... 14
WARRANTY INFORMATION ................................................................................................................ 15
SERVICE ............................................................................................................................................. 16
SPECIFICATIONS ................................................................................................................................ 17
LIST OF FIGURES
FIGURE 1 – Preamp section ................................................................................................................. 6
FIGURE 2 – Compressor Section .......................................................................................................... 7
FIGURE 3 – Equalizer Section .............................................................................................................. 9
FIGURE 4 – Signal Flow Block Diagram ............................................................................................. 10
FIGURE 5 – Output Section ................................................................................................................ 11
FIGURE 6 - Rear Jacks ....................................................................................................................... 12