Harman Soundcraft Si impact - Page 66

User Manual
7.2.4: ACS EQUALISER SECTION
DSP ELEMENTS > ACS > EQUALISER
7.2.3: DSP ELEMENTS > ACS > EQUALISER
LO MID Q
Adjust the Q of the LO MID Filter
Q is ‘magnification’ at resonance, and is inversely proportional to bandwidth. For an equaliser it is useful to think
of it simply as a bandwidth control (the width of the ‘bell’ in the case of a bell-shaped filter). That is, the higher
the Q, the lower the bandwidth - or the more ‘focussed’ the filter. Bandwidth (in octaves) is shown on the Touch
Screen with the Function Focus feature.
LF FREQ
Adjustthecut-offfrequencyoftheLF‘bell’lter.
Frequencies above and below this, within the bounds of the Q setting will be aected by the LF level control. That
is, Q eectively sets the ‘width’ (bandwidth) of the filter’s bell shape and FREQ sets the frequency at the centre of
the bell shape.
LF Level
Adjusttheboost/attenuationoftheLF‘bell’lter.
EQ On/Off
Switch the EQ process for this channel On and Off.
Pressing and holding the key will activate Interrogate mode for this function (see Mix Features 8.3).
LF Q
Adjust the Q of the HI MID Filter and switch bell/shelf mode.
The LF band is normally bell-shaped. When Q is turn to maximum, shelf mode is enabled and the shelving LED
will light. Q is ‘magnification’ at resonance, and is inversely proportional to bandwidth. For an equaliser it is useful
to think of it simply as a bandwidth control (the width of the ‘bell’ in the case of a bell-shaped filter). That is, the
higher the Q, the lower the bandwidth - or the more ‘focussed’ the filter. Bandwidth (in octaves) is shown on the
Touch Screen with the Function Focus feature.