Tannoy TDX2, User Manual

Page: 21 / 36

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8.2. High and Low pass filter Screens
Each output has an independent high pass filter and an independent low pass filter.
Both filters have a range of selectable slopes, which are Bessel 12dB, 18dB and
24dB, Butterworth 12dB, 18dB and 24dB, and Linkwitz-Riley 24dB.
High pass filters have a range of <10Hz (through) to 16kHz and Low pass filters
have a range of 22kHz (through) to 35.1Hz in 1/36 octave steps.
HPFs and LPFs can be asymmetrical set.
To adjust HPF/LPF settings:
Select relevant channel by pressing the channel ‘GAIN’ button.
Use the ‘BACK’ and ‘NEXT ’ keys to select HPF and LPF screens.
Use the ‘FREQ’ control to adjust the frequency.
Use the ‘Q’ control to select the slope.
Note: The low pass filter frequency cannot be set lower than the high pass filter
frequency and vice versa.
OP1+4 Low HPF
< 10Hz Bessel 24dB