Yamaha PC412-D Owner's Manual page 51

8. PROCESSING screen
8.6.3. INFORMATION
Here you can view information about the selected speaker preset (the speaker model name, and the mode and
type of FIR filter).
8.6.4. X-OVER
This applies a high-pass filter and a low-pass filter to the signal, allowing only a specific frequency region to
pass.
① HPF TYPE
This selects the attenuation per octave and filter type of the high-pass filter. If [Thru] is selected, no filter is
applied.
② HPF FREQ
This specifies the cutoff frequency of the high-pass filter.
③ HPF Gc
When AdjGc is selected as the Type, this specifies the gain of the cutoff frequency.
④ LPF TYPE
This selects the attenuation per octave and filter type of the low-pass filter. If [THRU] is selected, no filter is
applied.
⑤ LPF FREQ
This specifies the cutoff frequency of the low-pass filter.
⑥ LPF Gc
When AdjGc is selected as the TYPE, this specifies the gain of the cutoff frequency.
AdjGc (Adjustable Gain Control)
This adjusts Gc (gain at the cutoff frequency) in the range of -6 – +6 dB. A setting of -3 dB is a Butterworth filter,
and a setting of -6 dB is a Linkwitz-Riley filter. If this is selected, the Gc knob is shown.
But (Butterworth)
This is the most common response. The passband is flat, and the gain at the cutoff frequency is -3 dB.
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