Front Panel Controls And Indicators; Gain Control; Clip Indicator - Art DUAL TUBE EQ User Manual

Professional two channel tube parametric equalizer

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power down.

Note: Like all tube-based equipment, the Dual Tube EQ needs

to warm up before being used. Allow one to two minutes for the

tubes to reach proper operating voltage before using.

It is normal for the Tube EQ to be warm. The aluminum chassis

is used for heat dissipation. It is recommended that the Dual

Tube EQ be installed in an area where there is adequate venti-

lation.

If the Dual Tube EQ fails to power up when the power switch is

turned on, check to see that its power cord is plugged into an

active outlet. If the unit still fails to operate properly, turn it off

and unplug it. Then consult your dealer or A R T's Customer

Service department.

FRONT PANEL CONTROLS & INDICATORS

Each channel of the Dual EQ has identical features.

The Gain control sets the amount of input gain to the Dual Tube

EQ. Turn the control clockwise to increase gain and counter-

clockwise to decrease it. To maximize your signal to noise ratio,

it is important to start with a unity gain setting (meaning that the

level into the Tube EQ is the same as the level out of the Dual

Tube EQ). With the output level at its "0" position, adjust the

input gain until the level is the same when the Dual Tube EQ is

bypassed and active.

The Clip indicator will illuminate just before any gain stage of

the Tube EQ reaches audible distortion. Typically this will indi-

cate clipping at the input stage (which is corrected by turning

down the input gain control). However, it will also indicate any

distortion caused by excessive EQ'ing. In other words, if turning

down the input gain control doesn't make the clip indicator turn

off, check the frequency bands for excessive boost.

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