Points concerning network, Adjustments 52, Muting the speaker unit (filter) 52 – Pioneer DEH-P860MP Manuel d'utilisation

Page 52: Audio adjustments, Points concerning network adjustments, Muting the speaker unit (filter)

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Slope

Adjusting the HPF/LPF slope (filter attenuation

slope) lets you adjust the continuity of sound

between speaker units.

! The slope indicates the number of decibels

(dB) the signal is attenuated when the fre-

quency is one octave higher (lower) (Unit:

dB/oct.). The steeper the slope, the more

the signal is attenuated.

Phase

You can switch phase (normal, reverse) for

each speaker units input signal. When the

continuity of sound between speakers is im-

precise, try switching phase. This may improve

the continuity of sound between speakers.

Points concerning network

adjustments

Cut-off frequency adjustment

! With the low-range speaker installed in the

rear tray, if you set Low LPF cut-off fre-

quency high, bass sound is separated so

that it appears to come from the rear. You

are recommended to set Low LPF cut-off

frequency to 100 Hz or lower.

! The maximum input power setting for mid-

dle- and high-range speakers is usually

lower than that for low-range speakers. Re-

member that if Mid HPF or High HPF cut-

off frequency is set lower than required,

strong bass signal input may damage the

speaker.

Level adjustment

The basic frequencies of many musical instru-

ments are in the middle range. First perform

middle-range level adjustment, followed by

high-range and then low-range level adjust-

ment in that order.

Slope adjustment

! If you set a small absolute value for the

slope (for a gentle slope), interference be-

tween adjacent speaker units can easily re-

sult in degraded frequency response.

! If you set a large absolute value for the

slope (for a steep slope), continuity of

sound between speaker units is degraded,

and sounds appear to be separated.

! If you set the slope to 0 dB/oct. (Pass), the

audio signal bypasses the filter, so the filter

does not have an effect.

Phase adjustment

When the cross-over point value for filters on

both sides is set to 12 dB/oct., the phase is

reversed 180 degrees at the filter cut-off fre-

quency. In this case, reversing the phase as-

sures improved sound continuity.

Normal phase

Reverse phase

Crossover point

Muting the speaker unit (filter)

You can mute each speaker unit (filter). When

a speaker unit (filter) is muted, no sound is

outputted from that speaker.

! If you mute the selected speaker unit (fil-

ter), MUTE blinks and no adjustments are

possible.

! Even if any speaker unit (filter) is muted,

you can adjust the parameters for other

speaker units (filters).

1 Use MULTI-CONTROL to select NW 1.

The function name tag NW 1 is highlighted.

Audio Adjustments

En

52

Section

11

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