Operation Manual

INPUT CHANNELS
Gain Delay
The delay parameter is adjustable in fine steps at low values; the adjustment becomes progressively coarser as the value
increases. The velocity sensitive Parameter Knobs therefore provide accurate setting of driver offset delays (typically below
10ms) and rapid setting of longer system alignment delays.
High Pass Filter
System high pass filtering is provided for the input signal.
This is the preferred location for high pass filtering as it
affects all outputs and can therefore improve inter-band
phase relationships. Filter type is selectable from
Butterworth, Bessel, Linkwitz-Riley and Hardman. Filter
slopes of up to 4th order or 24dB / octave are provided. Not
all filter types are available in all slopes. For example 18dB /
octave Linkwitz-Riley filters do not exist.
The Hardman type filter is always described by its’ order as
the filter becomes progressively steeper rather than following
a linear slope so a dB/octave description is not accurate.
Parametric Equalisation
Eight sections of equalisation are provided, two shelving filters and six fully variable parametric sections.
High and Low shelving filters
The frequency is specified as point where the filter deviates by 3dB from the gain value.
Parametric filters
13
Knob A: Gain, adjustable in 0.2dB
steps from –80 dB to +20dB
Knob A: Delay, adjustable in
variable steps from 0 to 400ms
Knob A: Frequency, out (off),
10.0Hz to 25.6kHz in variable
steps
Knob B: High pass filter type
Knob A: Frequency, 10.0Hz to
25.6kHz in variable steps
Knob B: Slope, 6 to 12dB / octave in
1dB steps
Knob C: Gain, +/-15dB in 0.2dB steps
Knob A: Centre Frequency, 10.0Hz to
25.6kHz in variable steps
Knob B: Width, display selectable, Q or
BW (Bandwidth)
- BW adjustable from 0.05 to 5
octaves in variable steps
- Q adjustable from 14.2 to 0.2 in
variable steps
Knob C: Gain, +/-15dB in 0.2dB steps
In A Gain
0.0dB
In A Freq Shape
HPF 20.0Hz LR24
In A Freq Slope Gain
EQ1 100Hz 12dB 0.0dB
In A Freq Width Gain
EQ1 100Hz 1.4Q 0.0dB
In A Delay
1.5ms