Pioneer SC-LX901 Product Reference Manual page 7
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Multi-Channel Stereophonic Philosophy
Independent Dual Subwoofer Output
LX901 LX801 LX701
When connecting an additional subwoofer to increase the
bass, the two subwoofers may not be at a same distance. In
such a case, cancelling out of the bass may occur and prevent
you from perceiving the full effect of the additional subwoofer.
MCACC Pro supports independent adjustment for each
subwoofer, offering optimal performance for a dual-subwoofer
setup. You can enjoy free placement of your subwoofers.
Subwoofer EQ
LX901 LX801 LX701 LX502
The subwoofer EQ featured on the SC-LX901, SC-LX801 and
SC-LX701 allows you to adjust the subwoofer tone. For Auto
MCACC, the subwoofer EQ is automatically adjusted with EQ
type Symmetry, while manual adjustment is available with EQ
type All Channel Adjust and Front Align. As with other EQ, the
manual adjustment can be done on the AV receiver’s GUI. The
subwoofer EQ on the SC-LX502 adjusts the frequency
characteristic to flat, and manual adjustment is also available.
Full Band Phase Control
LX901 LX801 LX701
The further advanced Full Band Phase Control technology
focuses on the group delay in the speaker network filter, and
compensates with special digital signal processing (DSP), to
adjust the phase of each unit as well as the group delay for each
speaker. Full Band Phase Control gives multi-range speakers the
sound coherence of full-range speakers, while retaining the
wide frequency range advantage.
Full Band Phase Control Off
Full Band Phase Control On
TWEETER
TWEETER
(+)
(+)
MIDRANGE
MIDRANGE
(+)
(+)
WOOFER
WOOFER
(+)
(+)
Adjusts group delay for each unit
Precision Distance
LX901
Precision Distance is an innovative feature for making
millimeter-level manual adjustments to speaker distance. You
can easily duplicate a skilled installer’s precise positioning
with the help of a level gauge shown on the display.
AV RECEIVERS REFERENCE GUIDE
Front Align
LX901 LX801 LX701
Many users like to create a speaker system with the emphasis
on the front speakers for music playback. Front Align is a Full
Band Phase Control feature that matches the phase
characteristic of all speakers to the front speakers. By
combining with the “Front Align” EQ, you can match both the
frequency and phase characteristics to the front speakers. This
allows you to create a surround sound field with a smooth
feel, with focus on your favourite front speakers.
9-Band EQ
LX901 LX801 LX701
For each channel’s frequency characteristic, subtle
adjustments in 0.5 dB increments can be made from -12.0 dB
to +12.0 dB. You can also fine tune to the sound to your taste
while listening to the sound measurements. The independent
dual subwoofer output feature allows EQ adjustment for the
bass sound.
Page 7
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