Toa D-901 - Low-Pass Filter; High Shelving Filter; Low Shelving Filter

48
[Q settings]
[OUT1] FILTER1
Q 1.00
0
PARAMETER
PUSH-ENTER
CHANGE
• The Q setting can only be performed when HPF-12 dB is
selected.
• Rotate the Setting knob to set the Q.
Parameter setting range: 0.500 – 2.563 (51 points)
• Pressing an Output channel selector key permits the filter to be
set for that channel. The [OUT 1] indication changes to the
selected channel number indication.
9.4.3. Low-pass filter
[OUT1] FILTER1
TYPE LPF - 6d
B
PARAMETER
PUSH-ENTER
CHANGE
• Rotate the Setting knob to select either LPF-6 dB or LPF-12 dB,
and enter the Low-Pass Filter setting screen.
The indications of 6 dB and 12 dB represent the slope: 6 dB/oct
and 12 dB/oct, respectively.
• Setting items, parameter setting ranges and operations are the
same as those for the high-pass filter.
9.4.4. High shelving filter
[OUT1] FILTER1
TYPE H - She l
v
PARAMETER
PUSH-ENTER
CHANGE
• Rotate the Setting knob to select H-Shelv and enter the High
Shelving Filter setting screen.
• Pressing an Output channel selector key permits the filter to be
set for that channel. The [OUT 1] indication changes to the
selected channel number indication.
• The setting screen reverts to the Input/Output Gain Setting
screen when the shift key is pressed.
[Roll-off frequency settings]
[OUT1] FILTER1
FREQ 6 . 00kH
z
PARAMETER
PUSH-ENTER
CHANGE
• Rotate the Setting knob to set the roll-off frequency.
Parameter setting range: 6 – 20 kHz in 1/24 octave steps
• Pressing an Output channel selector key permits the filter to be
set for that channel. The [OUT 1] indication changes to the
selected channel number indication.
[Gain settings]
[OUT1] FILTER1
GAIN +0.0d
B
PARAMETER
PUSH-ENTER
CHANGE
• Rotate the Setting knob to set the gain.
Parameter setting range: –15 to +15 dB in 0.1 dB steps
• Pressing an Output channel selector key permits the filter to be
set for that channel. The [OUT 1] indication changes to the
selected channel number indication.
9.4.5. Low shelving filter
[OUT1] FILTER1
TYPE L - She l
v
PARAMETER
PUSH-ENTER
CHANGE
• Rotate the Setting knob to select L-Shelv and enter the Low
Shelving Filter setting screen.
• Setting items and operations are the same as those for the high
shelving filter.
• Parameter setting range
Gain: –15 to +15 dB in 0.1 dB steps
Roll-off frequency: 20 – 500 Hz in 1/24 octave steps