Presonus Eris User Manual download pdf (Page 12)

3 Tutorials

3.2 Input Gain Setting

Eris™ Series E5 and E8

Owner’s Manual

3.2 Input Gain Setting

The best place to start is to set the Input Level control at its 12

o’clock position, which is labeled “U” for “unity gain.” That

means the level of the signal reaching the ampliﬁer is the same

as the level of the signal entering the monitor’s input. This

ensures a good, strong signal level without amplifying any

extraneous noise. Make sure that the gain controls on your

audio source have been optimized for maximum signal level

and minimum noise. This process is called “gain staging,” and

you can learn about it from many online sources. You should

always set the Input Gain on your Eris monitor so that all other

level controls in the system needn’t be turned way up or way

down to achieve a comfortable listening volume.

If setting the input gain to Unity is unsatisfactory, you can

try diﬀerent settings, but remember that it’s better to avoid

settings above U if possible. If the volume is too loud at

unity gain, feel free to turn the Input Gain control down

a bit—but not so far that you have to crank your audio

source’s output level to its maximum setting. If you set it

too low, you’ll have to crank your audio source’s output

level way up, which will increase the audible noise from

your source signal. If you set it too high, any noise in the

signal will be ampliﬁed, which you don’t want, either!

Again, if you properly gain-stage your audio source, setting

Input Gain to U or slightly lower should work ﬁne.

Once the monitor’s Input Gain control is set, leave it

alone; don’t use it as a system-volume control. Leave

that job to your audio device’s output-level control.

3.3 Equalizer Setting Suggestions

The Eris E5/E8 provides three EQ controls in its

Acoustic Tuning section: High, Mid, and Low

Cutoﬀ. (There’s also an Acoustic Space control,

which is covered in the next section.) In general,

setting the High control to 0 (no boost or cut) will

produce the best results. However, if the sound is

generally too bright or shrill, try turning this control down

below 0; if the sound is too dull and lifeless, try turning it

up above 0. It’s always better to cut than to boost and to

use the smallest cut or boost needed to get the job done.

The Mid control is a mid-frequency peak ﬁlter that boosts

or cuts frequencies centered on 1 kHz and extending

about one octave above and below that frequency. Again,

setting this control to 0 will generally produce the best

results. If you want to emulate a car stereo, try turning it

down below 0 to approximate the common “smiley face”

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Presonus Eris User Manual Page 12

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