Title: SiImpactUserManual_V1.4_screen_original.pdf
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 LevelAdjusttheboost/attenuationoftheLF‘bell’filter.LF FREQAdjustthecut-offfrequencyoftheLF‘bell’filter.Frequencies above and below this, within the bounds of the Q setting will be affected by the LF level control. That is, Q effectively sets the ‘width’ (bandwidth) of the filter’s bell shape and FREQ sets the frequency at the centre of the bell shape.LF QAdjust the Q of the HI MID Filter and switch bell/shelf mode.