Proel PRONET v.2.1 - Manual (Page 58)

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7.1.4 Output Level Trim
Fig.75 Output level controls.
Fig.76 Output meters.
Trim
Adjusts the channel level with a reduced span of available values. It can be used to fine tune or “to trim”
output levels.
Mute
This parameter can mute or un-mute the single output channel to easily check the contribution of the high
and low frequency speakers.
Meter and Limiter
The bar LED monitors the level of the audio signal to the low and high frequency speakers (only the woofer
signal for a subwoofer)- It reads the level of the signal just after the level and mute controls.
The level of the signal displayed by the meter is always relative to the limiter threshold: a level of -10dB
displayed in the signal meter means -10dB “before” the limiter activity (threshold). The limiter activity is
visualized in the Limiter meter.
Note: the limit LED indication check the limiter activity also when signal meter read the level of signal after
the mute controls.
7.1.5 HPF / LPF filter
Fig.77 HPF LPF filters.
HPF (only in full range loudspeakers) controls the cut frequency for the High Pass filter used to match the full-
range loudspeaker to subwoofer systems. This filter is a Butterworth 24dB/oct.
LPF (only in subwoofer loudspeakers) controls the cut frequency for the Low Pass filter used to match the
loudspeaker to other satellites systems. This filter is a Butterworth 24dB/oct.