Solid State Logic DUENDE manual Equaliser Section, Page 20 of, Duende User Guide

Duende User Guide

6.4 Equaliser Section

G

INPUT

±dB Freq kHz

BELL

LF

±dB Freq kHz Q ±dB Freq kHz Q

LMF HMF

±dB Freq kHz

BELL

HF

OUTPUT

Operation

The equaliser included with the Duende EQ and Dynamics Channel Strip plug-in is a four band parametric EQ. 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 plug-in includes high and low frequency shelving equalizers (which can be switched to peaking curves via the BELL button) and two overlapping equalizers with adjustable Q.

The LF section operates over a frequency range of 40Hz - 600Hz and is capable of up to 16.5dB of cut or boost. The HF section operates over a frequency range of 1.5kHz - 22kHz and is capable of up to 20dB of cut or boost.

Normally these shelving curves have a degree of overshoot/undershoot (depending on whether you are boosting or cutting) below the selected HF frequency or above the selected LF frequency. De-selecting the G button removes the overshoot/undershoot effect and provides a slightly gentler slope. Selecting BELL in either mode switches the equaliser to a peaking curve.

The LMF section operates over a frequency range of 200Hz - 2 kHz and is capable of ±20dB of gain with a continuously variable Q from 0.5 to 2.5.

The HMF section operates over a frequency range of 600Hz - 7kHz and is capable of ±20dB of gain with a continuously variable Q from 0.5 to 2.5.

Normally, at any Q setting, the bandwidth of the HMF and LMF sections varies with gain, whereby an increase in boost or cut increases the selectivity of the EQ. This type of EQ can sound effective when used at moderate settings; the gentle Q curve lends itself to the application of overall EQ on combined sources and subtle corrective adjustments to instruments and vocals.

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