Yamaha MONTAGE M6 Operation Manual page 321

LPF24D: A dynamic −24 dB/oct Low-Pass Filter with a characteristic digital sound. Compared to
the LPF24A type, this filter can produce a more pronounced Resonance effect.
LPF24A: A digital dynamic Low-Pass Filter with characteristics similar to a 4-pole analog
synthesizer filter.
LPF18: 3-pole −18 dB/oct Low-Pass Filter.
LPF18s: 3-pole −18 dB/oct Low-Pass Filter. This filter has a smoother cutoff slope than the
LPF18 type.
HPF
This Filter Type only passes signals above the Cutoff Frequency.
You can produce a distinctive "peaky" sound by raising the Resonance or boosting the signal
level near the Cutoff Frequency.
LPF12+HPF12: A combination of a −12 dB/oct Low-Pass Filter and a −12 dB/oct High-Pass
Filter connected in serial. When this Filter Type is selected, HPF Cutoff and HPF Key Follow
Sensitivity can be set.
LPF6+HPF12: A combination of a −6 dB/oct Low-Pass Filter and a −12 dB/oct High-Pass Filter
connected in serial. When this Filter Type is selected, HPF Cutoff and HPF Key Follow
Sensitivity can be set.
HPF24D: A dynamic −24 dB/oct High-Pass Filter with a characteristic digital sound. This filter
can produce a pronounced Resonance effect.
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