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FRONT PANEL FEATURES
MODE SWITCH
MONO
When the MODE Switch is in the MONO position,
all input signals are summed. Speakers are driven
as shown in Figure
5.
Use the MONO position for
A)
phasing speakers
and B) playing a monaural source, such as TV
audio, AM radio or monaural records through
all four channels,
C)
setting up BALANCE
controls.
2CH
When the MODE Switch is in the 2 CH position,
left-front and left-rear inputs are summed. Right-
front and right-rear inputs are summed. Speak-
ers are driven as shown in Figure 6.
Use the 2 CH position for playing regular stereo
records without synthesizing rear channels.
DISCRETE
When the MODE Switch is in the DISCRETE
position, each input signal goes to its respective
output channel. Speakers are driven as shown
in Figure 7.
Use the DISCRETE position for A) playing dis-
crete 4-channel sources such as 0-8 cartridges or
CD-4 records, and B) playing 2-channel stereo
programs through front speakers only.
VARI-MATRIX
When the MODE Switch is in the VARI·MATRIX
position, rear input signals are internally discon-
nected. Left-front and right-front inputs feed
left-front and right-front speakers, as in the DIS-
CR ETE MOD E. Rear channel signals are "syn-
thesized" or derived from the left-front and
right-front input signals. The characteristics of the
;
",:.
RIGHT FRONT
SPEAKER
llWUT .OHAL DEaMlNATlONI:
L~UPT 'ftONt~
RF-IlIIOftT 'fWflIT
LII'-L&" "EAA, Rtt-fUOHT AfAlIt
Figure 5.
Mono Mode Sound Dispersion
rear channel signals are varied by the DIMENSION
control. Speakers are driven as shown in Figure 8.
LEFT REAR RIGHT REAR
SPEAKER
SPEAKER
'NI'VT
SleMA.. 0IW10fli&A.T10N1:
LP-L,lfT '''ONT.
"'-ft'a.iT
'''ONT
LR-LI!" .. !.Aft, .." .... tGHT IlIEAlit
Figure 6.
2- channel Mode Sound Dispersion
Figure 7.
Discrete Mode Sound Dispersion
LEFT FRONT
RIGHT FRONT
SPEAKER
SPEAKER
INPUT SIGNAL
oeIlONA~;
Lf-un
'''ONT, R,."tQHT fROflIT
L...
un
"1M, " ......'aHT "£A"
Figure 8.
Vari·Matrix Mode Sound Dispersion
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