ART Digital MPA™ Microphone Preamplifier
TABLE OF CONTENTS
Introduction ............................................................................................ 3
Introduction .......................................................................................... 3
Features............................................................................................... 3
Front Panel Controls .............................................................................. 4
Input Gain Control ............................................................................... 4
Input Impedance Control ................................................................. 4-5
Analog Output Control ......................................................................... 5
HPF Control ........................................................................................ 5
Gain Switch ......................................................................................... 5
Phantom Switch ................................................................................... 5
Phase Switch ...................................................................................... 5
Plate Voltage Switch......................................................................... 5-6
Meter Switch........................................................................................ 6
Digital Section Controls ........................................................................ 6
Digital Level Control ............................................................................ 6
Dither Switch ....................................................................................... 6
Sample Rate Control ........................................................................... 7
Optical Switch...................................................................................... 8
Front Panel Connections......................................................................... 8
Instrument Inputs................................................................................. 8
Rear Panel Connections......................................................................... 8
Balanced Inputs................................................................................... 8
Balanced Outputs ............................................................................... 8
Insert Jacks ......................................................................................... 9
Word Clock Jacks................................................................................. 9
ADAT Input .......................................................................................... 9
Optical Output....................................................................................... 9
S/PDIF Output ..................................................................................... 9
AES/EBU Output .................................................................................. 9
Signal Path Flow ................................................................................... 10
Signal Path Flow Diagram .................................................................. 10
Operating Instructions ......................................................................... 10
Obtaining the best noise performance............................................... 10
Adjusting the input impedance...................................................... 10-11
Obtaining the perfect digital level setting ........................................... 11
Setting the tube plate voltage ............................................................ 11
Warranty Information ........................................................................... 12
Service .................................................................................................. 12
Specifications ....................................................................................... 13
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Frequency Response
Weight and Dimensions
