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Reference Material, cont’d
MLS 304 Series, MLS 406 Series • Reference Material
A-8
PRELIMINARY
Audio Block Diagrams
MLS 304MA audio block diagram
INPUT SELECT
(LEFT CHAN NEL)
INPUT SELECT
(RIGHT CHANNEL)
MUX
+4
+4
-10
-10
MUX
+4
+4
-10
-10
+ -
+
-
+ -
MUX
+4
+4
-10
-10
MUX
+4
+4
-10
-10
+ -
+
-
+10dB@
100Hz/10kHz
+/-10dB@
100Hz/10kHz
LEFT
LEFT
LEFT
LEFT
CTRL
CTRL
RIGHT
RIGHT
RIGHT
RIGHT
LOUDNESS
LOUDNESS
BASS & TREBLE
VOLUME
AUX/MIX
(Balance/Unbalance)
BASS & TREBLE
PREAMP
LINEOUT
VOLUME
CONTROL
100V
70V
COM
SETUP MODE
USER MODE
MAX/
CLIP
MID/
NORM
MIN/
SIGNAL
+V
RED
GREEN
GREEN
SWITCH
XFMR
POWER
LIMITER
CIRCUIT
POWER AMP
20 WATTS
(continuous)
LED
MODE
SWITCH
VOLUME
POSITION
CTRL
Gain/Attenuation:
-42dB to +24dB
Configurable output levels
-10dBV unbalanced
or
+4dBV balanced
LEFT CHN
+
AUX/MIX
LEFT
AUX
LEFT CHN
+
AUX/MIX
RIGHT CHN
+
AUX/MIX
CTRL
CTRL
CTRL
1
2
3
4
1
2
3
4
MONO
RIGHT CHN
+
AUX/MIX
MONO
LEFT
AUX
RIGHT
AUX
FILTER
User Mode: Volume Level Indicator
Set Up Mode: Input Level Indicator
RIGHT
AUX
Audio Block Diagram for MLS 304MA.eps
SWITCHABLE INPUTS
Gain/Attenuation:
-42dB to +24dB
4 / 8 ohm
+
-
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