Operating instructions

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Table Of Contents
LA-610 Specifications....................................................................................1
LA-610 Operating Instructions.......................................................................2
610 Front Panel ................................................................................2
Input Select.............................................................................2
Gain........................................................................................3
Level.......................................................................................3
Pad..........................................................................................4
Polarity ...................................................................................4
+48 V (Phantom Power)..........................................................4
EQ Controls ............................................................................4
T4 Optical Compressor Front Panel ...................................................5
Peak Reduction ..........................................................................5
Gain...........................................................................................5
Limit/Compress .........................................................................5
Meter Function ..........................................................................6
Meter Calibration.......................................................................6
Meter Function ..........................................................................6
Meter Calibration.......................................................................6
LA-610 Rear Chassis .....................................................................................6
Input/Output ........................................................................................6
AC Power ...........................................................................................7
Fuse/Mains..........................................................................................7
Voltage Select .....................................................................................7
Compressor Theory of Operation ...................................................................8
Compressor Basics ..............................................................................8
Gain Reduction Circuits ......................................................................8
Historical Notes ...........................................................................................13
The 610 Preamp ................................................................................13
The 1176 and LA-2A Compressors....................................................15
The LA-2A........................................................................................16