Adjusting The Output Level - HELIX PP50DSP Operating Instructions Manual

Adjusting the output level

The output level of each of the channels may be adjusted using the "Output level" slide control.
This increments depend on the governor setting. The "–10" to "+5 dB" band has increments of
1 dB, the "–30 dB" to "-10 dB" band increments of 2 dB and that below "–30 dB" has increments
of 6 dB. The exact value is also indicated on the scale next to the slide control and as an absolute
value above the slide control.
When adjusting the slide control, values greater than "0 dB" must be avoided, otherwise there is
a risk of overloading the amplifier signal processor. Ensure that the red area of the level indicator
is never visible at any volume. This may possibly occur if you have used the full boost of "+6 dB"
in an equalizer frequency band, for example. The red bar in the level indicator is a clear sign that
the signal processor is overloaded, which may cause a dramatic and sudden rise in the distortion
factor. In contrast to an analog amplifier, which overloads slowly, the digital amplifier stages are
comparably very "intolerant". Digital overmodulation sounds extremely uncomfortable and may
quickly damage the connected loudspeaker (tweeter). It is therefore preferable to set the quietest
channel to "0 dB" and adjust all other channels downwards accordingly until the volume balance
meets your requirements.
Muting an output channel ("Mute")
The mute button is used to mute the output of a channel. Clicking on
this function again takes the channel off mute.
Bypassing the equalizer and the time alignment ("Bypass")
Activating the "Bypass" button on the left next to the Output Level slide control bypasses
the graphic 1/3 octave equalizer, the parametric filter, the fine-EQ functions and the time alignment
settings. The "Bypass" may be removed by clicking on the function for a second time.
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