Pioneer SC-LX90 - Manual (Page 15)

Simple Home Theater Guide 02
15
En
This amplifier analyzes the frequency-phase
characteristics of the speakers by calibrating test signals
output from the speakers with the supplied microphone,
therefore flattening the analyzed frequency-phase
characteristics during audio signal playback 1 – the same
correction is made for a pair of left and right speakers.
This correction minimizes group delay between the
ranges of a speaker and improves the frequency-phase
characteristics across all ranges.
Furthermore, the enhanced frequency-phase
characteristics between channels ensure better
surround sound integration for multichannel setting.
2
Full Band Phase Control OFF
Sound in the middle- and low-frequency ranges is
delayed against the high-frequency sound due to group
delay.
Full Band Phase Control ON
With the phase distortion corrected, the frequency-phase
characteristics are improved across all ranges.
• Sound with live dynamics
• Sound of musical instruments with superb reality
• Sound so accurately reproduced that you can even
hear the lip movement of the singer
• Speech heard with no loss of clarity
• Surround sound with excellent integration
• Set the operation selector switch to AMP, then
press PHASE (PHASE CONTROL) to select
FULLBAND PHASE. 3
Both the Phase Control and Full Band Phase Control
functions are switched on. The PHASE CONTROL
indicator lights on the front LCD display.
Note
1 To calibrate and analyze the frequency-phase characteristics of the speakers, follow the procedures in Auto MCACC Setup (see Automatically setting up
for surround sound (MCACC & Full Band Phase Control) on page 11) or FULL BAND PHASE CTRL in the System Setup (see Full Band Phase Control on
page 49). Select ALL when you perform the Auto MCACC Setup with CUSTOM. Upon calibration of the frequency-phase characteristics of the speakers,
the FULL BAND PHASE CTRL feature is automatically switched on. Note that FULLBAND PHASE cannot be selected unless the frequency-phase
characteristics of the speakers are calibrated.
2 The original characteristics of group delay of the speakers calibrated and the targeted characteristics after correction can be displayed graphically in the
OSD (see
Full Band Phase Control on page 49). Also, when your PC is connected to this amplifier, the original characteristics of group delay of the speakers
calibrated and the corrected characteristics of group delay can be displayed in 3-dimension on your PC (see Advanced MCACC output using your PC on
page 70).
Tweeter
Midrange
Woofer
Group Delay Characteristics
ms
Hz
3 The FULL BAND PHASE CTRL mode cannot be set to ON in the following cases:
– When headphones are plugged in.
– When the
PURE DIRECT mode is switched on.
– When the HDMI audio output parameter is set to THROUGH in Setting the Audio options on page 99.
Tweeter
Midrange
Woofer
Group Delay Characteristics
ms
Hz
SOURCE TV AMP
VOL
VOL CH
SOURCE TV AMP
SIGNAL SEL SLEEP AUDIO DIMMER
SR+
CLR
SBch PHASE iPod CTRL
A.ATT GENRE HDMI OUT
MCACC
DISP
CH
PHASE
SC_LX90_WY.book Page 15 Wednesday, February 6, 2008 11:49 AM