Pioneer VSX-919AH-K User Manual

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 – 

WMA9 Pro lights to indicate that a WMA9 

Pro signal is being decoded.

•

HDMI is not assigned by default. To select 
an HDMI signal, conduct the input setup 
procedure (see 

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 coloring of the sound.

Phase Control technology provides coherent 
sound reproduction through the use of phase 
matching

1

 for an optimal sound image. The 

default setting is on and we recommend 
leaving Phase Control switched on for all 
sound sources.

(PHASE CONTROL) to switch on phase 
correction.
The 

PHASE CONTROL indicator on the front 

panel lights.

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, then the sound will be ‘out of phase’ and an unreliable sound image will be produced.
• The 

PHASE CONTROL feature is available even when the headphones are plugged in.

• 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 CH IN input is selected.

– When the HDMI audio output parameter is set to 

THROUGH in Setting the Audio options on page 64.

VSX-1019_KU.book  Page 59  Thursday, January 8, 2009  12:01 PM