ALLEN & HEATH XONE:DB2 User's Guide download pdf (Page 13)

Allen & Heath XONE:DB2 User Guide 13

AP8640_2

XONE TRIMODAL EQ

HF CONTROL

Adjusts the high frequency content of the channel audio. In ISO or

EQ mode the centre-detent position will give a flat frequency

response, fully clockwise will boost the high frequencies by 6dB, and

anticlockwise will attenuate them.

In FILTER mode this control becomes a low-pass filter, and must be

rotated fully clockwise for a flat frequency response. Rotating

anticlockwise will progressively lower the cut-off frequency of the

filter.

MF/RES CONTROL

Adjusts the mid range frequency content of the channel audio. In ISO

or EQ mode the centre-detent position will give a flat frequency

response, fully clockwise will boost the mid frequencies by 6dB, and

anticlockwise will attenuate them.

In FILTER mode this control sets the sharpness (Q) or resonance of

the two filters. Rotate fully anticlockwise for low resonance, and fully

clockwise for high resonance. Use this control with care as a high

resonance will boost the signal level at the Filter cut-off point which

could cause the signal to clip.

LF CONTROL

Adjusts the low frequency content of the channel audio. In ISO or

EQ mode the centre-detent position will give a flat frequency

response, fully clockwise will boost the low frequencies by 6dB, and

anticlockwise will attenuate them.

In FILTER mode this control becomes a high-pass filter, and must be

rotated fully anticlockwise for a flat frequency response. Rotating

clockwise will progressively raise the cut-off frequency of the filter.

SWITCHING EQ MODES

The Trimodal EQ is switched globally and is described in further detail on Page 19

The Trimodal EQ on the XONE:DB2 can operate in any one of three different modes:

ISOLATOR MODE

In this mode, the EQ provides full attenuation when fully anti-clockwise and a safe +6dB of boost when

fully clockwise. This EQ offers a steep 24dB/octave slope for tight frequency isolation.

EQ MODE

In this mode, the EQ provides –26dB of attenuation and +6dB of boost. This EQ has a gentler 12dB/

octave slope better suited to certain styles of music.

FILTER MODE

In FILTER MODE, the EQ section becomes a high and low pass filter system with adjustable resonance,

offering precise control over the frequency spectrum. The filters haver a 12dB/octave slope. The MF pot

controls the resonance, or “sharpness” (Q) of the filter.

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ALLEN & HEATH XONE:DB2 User's Guide Page 13

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