Specifications

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 11. Stereo reverse mode

Channel A output is connected as in the normal stereo mode. By having

channel A and B operating in opposite polarity, the energy storage in the

power supply is more efficient. This means that the amplifier can deliver up

to 10% more power than in tandem mono mode. This is significant for

signals below 100Hz (sub bass etc.).

7 OPERATION

7.1 Operation precautions

• Make sure that the power switch is off before making any input or

output connections or operating the switches on rear panel. See pages

6-11 about installation.

• Make sure that the AC mains is correct and the same as that printed on

the rear panel of the amplifier. See pages 6-8 about operating voltage

and power consumption.

• Make sure that the switches on the rear panel for operation modes and

clip are in the correct position. See pages 11-13 about operation modes

and page 15 about clip limiters.

• It is always a good idea to turn down the gain controls during power up

as this prevents speaker damage, especially if there is a high level

signal at the input.

Martin Audio – MA1.3 Power Amplifier

ENGLISH

–

CH A

–

CH B

I/P

LINK

PHASE

INVERT

CONTENTS

GUIDES