LD Systems EQ 215 - Manual (Page 5)

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FEATURES & GETTING STARTED:
Insert the graphic equalizer between the signal source (usually a mixer) and the power amplifier (or crossover if
there is one). Adjust the level and equalization as required to yield the desire system response.
For optimum signal-to-noise response, the gain structure of the sound system must be properly set up. Each
component of the sound system should be set at its nominal operating level, starting with the first element in the
system, usually a mixing console.
Each element should be run at its nominal operating level in order to take advantage of the maximum signal-to-
noise properties of that element. Loudspeaker amplifiers, as the last element in the chain, should be set only as
loud as necessary, in order to avoid inducing unnecessary noise into the system.
TO CONNECT THE EQUALIZER TO YOUR SOUND SYSTEM PLEASE REFER TO THE FOLLOWING STEPS:
• TURN OFF ALL EQUIPMENT BEFORE MAKING CONNECTIONS.
• MOUNT EQUALIZER IN A STANDARD-WIDTH RACK.
Install the EQ in a rack with the rack screws provided. it can be mounted above or below anything that does not
generate excessive heat. Ambient temperatures should not exceed 113° F (45°C) when equipment is in use.
Although the unit's chassis is shielded against radio frequency and electromagnetic interference, extremly high
fields of RF and EMI should be avoided.
• MAKE AUDIO CONNECTIONS VIA XLR OR 6.3 MM TRS JACKS (ACCORDING TO APPLICATION REQUIREMENT).
Both types of connectors for the inputs and outputs can be used for balanced or unbalanced connections. The
use of more than one connector at a time for the inputs could unbalance balanced lines, cause phase cancellati-
on, short a conductor to ground or cause damage to other equipment connected to the equalizer. More than one
output may be used simultaneously as long as the combined parallel load is greater than 2 k
Ω.
• SELECT THE OPERATING RANGE WITH THE BOOST / CUT RANGE SELECTION SWITCH.
Note: be sure to reduce audio levels at the power amplifiers when changing the setting of this switch as it may
generate an audible transient.
• APPLY POWER TO THE EQUALIZER.
Connect the AC power cord to the AC power receptable on the back of the equalizer. Route the AC power cord to
a convenient power outlet away from audio lines.