5.4 Equaliser Section
Operation
The equalizer included with the Duende PCIe EQ and Dynamics Channel Strip plug-in is a four band parametric EQ with
filters. Based on the XL 9000 K Series EQ circuit, this plug-in includes two distinct EQ curves, one based on the SSL G Series
EQ and another based on the latest version of SSL’s classic E Series EQ.
The G series EQ bandwidth varies with applied gain and so increases the selectivity of the EQ. This EQ type generally works
best at moderate settings, particularly on instruments or vocals as a gentle, corrective EQ. The E series EQ is the
‘Black Knob’circuit, which has a constant-bandwidth at all gains. This means that it can be particularly useful for
‘surgery EQ tasks’ as it offers relatively narrow Q at relatively low gains. Note –at full boost or cut both curves are identical.
E
±dB
Freq Hz Freq kHzFreq kHz Freq kHzQ
INPUT OUTPUT

LF LMF HMF HF

BELL
±dB ±dB
Q±dB
BELL
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