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Operator’s Manual Page 61

Low/High Pass Variable ‘Q’ Filter (Low Pass shown)

InA Input A LPF:1~~

InA Input A LPF:1~~InA Input A LPF:1~~

InA Input A LPF:1~~\

1k00Hz Q=3.0 LPF VarQ

1k00Hz Q=3.0 LPF VarQ1k00Hz Q=3.0 LPF VarQ

1k00Hz Q=3.0 LPF VarQ

Remember – to change filter types, press BYPASS

BYPASSBYPASS

BYPASS to bypass

the filter, and then use ENTER

ENTERENTER

ENTER to select the filter type.

The low and high pass variable ‘Q’ filters have adjustable

frequency and ‘Q’ (or Bandwidth) controls. The ‘Q’ control

adjust the damping of the filter, so that low ‘Q’ settings show

less overshoot at the turnover frequency, but also slower roll-

off.

Remember that ‘Q’ is 1/Bandwidth, so the higher the ‘Q’, the

lower the Bandwidth, and the smaller the range of frequencies

affected. The filter is primarily 12dB/Octave, but in achieving

this sort of roll-off with a high ‘Q’ value will result in quite a

large overshoot in level at the turnover frequency. This type of filter is often also called a resonant filter.

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XTA 5 series Specifications

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