DOD SR831QXLR, SR431QXLR 4SR Series EQ’s, Installation, For 1/4 Mono Phone Plug Connection, Xlr

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.