Pioneer VSX-824-K Owner's Manual

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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.

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 headphones are connected.

Only available with 2-channel sources in DOLBY PLII MUSIC 

mode.

Only when listening to 2-channel sources in NEO:6 CINEMA 

and NEO:6 MUSIC mode.