4SR Series EQ’s
DOD graphic equalizers offer both 1/3rd and 2/3rds octave models in stereo and 1/3 octave models in mono to meet any need.
INSTALLATION
Install the equalizer in a rack with the provided rack screws. Route the AC power cord to a convenient power outlet away from audio lines. The unit may be turned on and off using the front panel power switch. Since the units draw a relatively small amount of current during idle, they can be left on continuously.
DOD equalizers generate very little heat during operation and thus do not need to be specially ventilated or cooled. The units should not, however, be subject- ed to high temperatures for extended periods. Although the unit's chassis is shielded against radio frequency and electromagnetic interference, extremely high RF and EMI fields should be avoided.
The XLR inputs and outputs are for balanced connections. Only the 1/4" phone plug inputs and outputs can be used for unbalanced connections. Use only one input/output connector pair at a time. Using more than one input/output con- nector pair at a time can unbalance balanced lines, cause phase cancellation, short a conductor to ground, or cause damage to other equipment connected to the equalizer.
FOR BALANCED 1/4 “ TRS PHONE PLUG CONNECTION - Wire the con- nectors as follows:
Phone Plug | Connection |
tip | : high |
ring | : low |
sleeve | : ground |
FOR 1/4" MONO PHONE PLUG CONNECTION:
Phone plugConnection
tip | : high |
sleeve | : ground |
XLR CONNECTORS - XLR type connectors are wired as follows:
XLR | Balanced | Unbalanced |
Connector | Connection | Connection |
pin 1: | ground | ground |
pin 2: | high | high or hot |
pin 3: | low | ground |
Once the graphic equalizer has been installed and adjusted for the required equalization and level, an optional security panel can be installed to keep unau- thorized persons from changing settings.
