Pioneer DEH-80PRS User Manual download pdf (Page 24)

Phase

You can switch phase (normal, reverse) for

each speaker unit’s 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-range and high-range speakers is

usually lower than low-range speakers.

Please be aware that if the Mid HPF or

HighHPF 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 M.C. to select NW 1.

Refer to Introduction of audio adjustments on

page 20.

2 Turn LEVER to select the speaker unit

(filter) to be adjusted.

Low LPF (low-range speaker LPF)—Mid HPF

(middle-range speaker HPF)—Mid LPF (mid-

dle-range speaker LPF)—HighHPF (high-range

speaker HPF)

3 Press M.C. to mute the selected speaker

unit (filter).

MUTE blinks in the display.

# To cancel the muting, press M.C. again.

Adjusting network

1 Use M.C. to select NW 1.

Refer to Introduction of audio adjustments on

page 20.

En

24

Section

02

Operating this unit

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