Ada Cinema Rhapsody Mach II Installation Manual Page 29

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Page 29
Setup 5 - THX
The Cinema Rhapsody Mach 4 permits the
adjustment of features that are specic to THX
Ultra 2.
Boundary Gain Control (BGC)
When the chosen listening room layout (for prac-
tical or esthetic reasons) results in the listener
being too close to the rear wall, the resulting
bass level can be sufciently reinforced by the
boundary that the overall sound quality becomes
“boomy”. Boundary Gain Compensation (BCG)
can be switched ON to restore the correct bass
performance. Please note, that ADA recommends
this lter remain off.
Back Speaker Spacing - Advanced
Speaker Array (ASA)
The optimum blend of ambient and rear direc-
tional information provides an enhanced sur-
round experience over a wider listening area for
all multi-channel formats. With stereo surround
tracks and multi-channel music,, the signal is fed
unprocessed to the left and right surrounds and
after further processing, to the surround back
speakers. This processing uses THX ASA (Ad-
vanced Speaker Array) Technology and provides
an enveloping rear surround eld over a wide
listening area. The adjustment to the ASA (Back
Speaker Spacing) is based on three settings; if
the two back surround speakers are less than 1
foot apart, if they are between 1 and 4 feet apart,
or if they are greater than 4 feet apart. To set the
Back Speaker Spacing for your system.
In the PC program, select the side THEATER tab,
the PRO SETUP top tab and then the 5-THX sub
tab. Here you can turn Boundary Gain ON or OFF
as well as select the ASA speaker settiing.
From the front of the Cinema Rhapsody Mach 4,
while in the setup mode, use the Mode knob to
navigate to the word PRO SETUP and press the
Mode knob. On the page that features LABELS/
AV in the top left corner, use the Mode knob to
navigate to the ENHANCEMENTS and press the
Mode knob. On the Enhancement page, turn the
Mode knob to THX and press the Mode knob.
Use the Mode knob to navigate to either Bound-
ary Gain or Back Spacing. Use the Input knob to
turn Boundary Gain ON or OFF and to select the
ASA setting of choice.
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