T
A B L E
O F
C
O N T E N T S
PERFORMANCE SPECIFICATIONS
.......................................................................................................................... i
Frequency Response Graph
Energy Time Curve Graph
Horizontal Polar Response Graph
Dimensions
SAFETY PRECAUTIONS
.......................................................................................................................................... ii
INTRODUCTION
................................................................................................................................................... 1
TECHNICAL DESIGN FEATURES
............................................................................................................................ 1
FRONT & REAR PANEL VIEWS
............................................................................................................................... 4
INSTALLATION
Location ........................................................................................................................................................... 5
Determining Acoustic Center ............................................................................................................................ 6
Input Switch ..................................................................................................................................................... 6
XLR Wiring Configurations ............................................................................................................................... 6
SCHEMATIC DIAGRAMS
Schematic Diagram .......................................................................................................................................... 7
PC Board Layout ............................................................................................................................................. 11
OPERATION
Input Sensitivity .............................................................................................................................................. 12
Bass Roll Off ................................................................................................................................................... 12
Bass Shelving .................................................................................................................................................. 13
Treble Shelving ............................................................................................................................................... 13
AC Line .......................................................................................................................................................... 14
Power Switch ................................................................................................................................................. 14
Status LED ...................................................................................................................................................... 15
Rubber Pad ..................................................................................................................................................... 15
Break-In and Warm-Up .................................................................................................................................. 15
Cleaning and Maintenance ............................................................................................................................. 15
SERVICE REFERENCE
Parts List ......................................................................................................................................................... 16
Functional Block Diagram .............................................................................................................................. 19
Circuit Operation ........................................................................................................................................... 20
Calibration ..................................................................................................................................................... 20
Input Circuit ................................................................................................................................................... 21
Tweeter Crossover .......................................................................................................................................... 21
Woofer Crossover ........................................................................................................................................... 22
Thermal Protection ......................................................................................................................................... 22
Clipping Indicator ........................................................................................................................................... 23
On Indicator ................................................................................................................................................... 23
Tweeter Replacement ..................................................................................................................................... 24
Woofer Replacement ...................................................................................................................................... 24
Amplifier Replacement ................................................................................................................................... 25
Transformer Replacement ............................................................................................................................... 25
WARRANTY
......................................................................................................................................................... 26
