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SMA/ SBA SERIES
FIG. 3: BLOCK DIAGRAM OF SMA 250
CH -1
PRIORITY
MUTING
MUTE
MUTE
MUTE
MUTE
MUTE
MUTE
THERMAL
-9dB
CH 1
PUSH PULL
OUTPUT
STAGE
OUTPUT
TERMINAL
4 OHMS DIRECT
COM
100V
70V
COM
MUTE
REC OUTPUT
O.T.
IN
(LINK)
CH 2
CH 4
+9dB
TREBLE
-12dB
+12dB
BASS
CH 1
CH 2
CH 4
