Specifications

The recommended minimum nominal impedance for bridged mono is
4 ohms (equivalent to driving both channels at 2 ohms). Driving bridged
loads of less than 4 ohms may cause a thermal overload.
Figure 11. Bridge mono connection
Both level attenuators must be at the same position. We recommend that
you put them in the 0dB (full) position.
6.4 Stereo reverse
This mode is similar to the Tandem mono mode. Apart from depressing the
Link switch, you also depress the Phase reverse switch, as in the Bridge
mono. Channel B is now phase reversed. To compensate for that, connect
pin +1 on channel B Speakon to speaker negative terminal and pin -1 on
channel B to speaker positive terminal.
Figure 12. Stereo reverse mode
Martin Audio – MA4.2 Power Amplifier
ENGLISH
14
1
2
3
–
–
+
+
CH A
+
1
2
3
–
–
–
+
+
+
CH B
+
I/P
LINK
PHASE
INVERT
–
–
1
2
3
–
–
–
+
+
+
CH A
+
1
2
3
–
–
–
+
+
+
CH B
+
I/P
LINK
PHASE
INVERT
CONTENTS
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