Pioneer VSX-519V-K: Using Phase Control

Listening to your system 05

English

Using Phase Control

This receiver’s Phase Control feature uses

phase correction measures to make sure your

sound source arrives at the listening position in

phase, preventing unwanted distortion and/or

Français

coloring of the sound (see illustration below).

During multichannel playback, LFE (Low-

Frequency Effects) signals as well as low-

frequency signals in each channel are

assigned to the subwoofer or other the

subwoofer and the most appropriate speaker.

At least in theory, however, this type of

processing involves a group delay that varies

with frequency, resulting in phase distortion

where the low-frequency sound is delayed or

muffled by the conflict with other ch

annels.

Wi

th the Phase Control mode switched on, this

Phase Control technology provides coherent

Italiano

receiver can reproduce powerful bass sound

sound reproduction through the use of phase

without deteriorating the quality of the original

1

matching

for an optimal sound image at your

sound (see illustration below).

listening position. The default setting is on

and we recommend leaving Phase Control

switched on for all sound sources.

Nederlands

•Press

PHASE

to switch on phase

correction.

Español

Deutsch

29

En

P

H

Front speaker

Listening

A

S

position

E

C

?

O

N

T

R

O

L

O

Sound

F

F

source

Subwoofer

Front speaker

Listening

P

H

position

A

S

E

C

O

N

T

R

O

L

Sound

O

source

Subwoofer

N

1 Phase matching is a very important factor in achieving proper sound reproduction. If two waveforms are ‘in phase’, they crest

and trough together, resulting in increased amplitude, clarity and presence of the sound signal. If a crest of a wave meets a

trough (as shown in the upper section of the diagram above) then the sound will be ‘out of phase’ and an unreliable sound

image will be produced.

• If your subwoofer has a phase control switch, set it to the plus (+) sign (or 0°). However, the effect you can actually feel when

PHASE CONTROL is set to ON on this receiver depends on the type of your subwoofer. Set your subwoofer to maximize the effect.

It is also recommended you try changing the orientation or the place of

your subwoofer.

• Set

the built-in lowpass filter switch of your subwoofer to OFF. If this cannot be done on your subwoofer, set the cutoff

frequency to a higher value.

• If the speaker distance is not properly set, you may not have a maximized PHASE CONTROL effect.

• The PHASE CONTROL mode cannot be set to ON in the following cases:

– When the PURE DIRECT mode is switched on.

– When the MULTI IN input is selected.

VSX_519V_MY.book 29 ページ ２００９年１月１６日　金曜日　午後７時３２分