Macrom 45.40 owner manual Controls and Indicators

50 80 120Hz

Flat 63 80Hz

2 Ch 4Ch

Mode

CONTROLS AND INDICATORS

1 • FRONT/SUB INPUT CONNECTORS: Connect the pre-output leads of the head unit to the input connectors of the amplifier. This input will drive the end section of both the FRONT section and the SUB one.

2 • REAR INPUT CONNECTORS: Connect the pre-output leads of the head unit to the input connectors of the amplifier. This input will drive the end section of the REAR section.

3 • 4CH/2CH INPUT MODE SELECTOR:It allows to select the amplifier’s input configuration as follows:

a) “4ch” - the operation of the five channels depends upon the connection of the four input channels

b) “2ch” - utilize the FRONT/SUB inputs to drive the five channels by means of two inputs only.

4 • FRONT CROSSOVER SELECTOR: Il allows to select the FRONT amplifier’s operation mode:

a) “FLAT”: the FRONT amplifier reproduces the whole audio range on grounds of the signal present at its input;

Flat 63 80Hz

b) “63 Hz”: the High-Pass crossover is activated at 63 Hz to determine the starting value of the high frequencies present at FRONT outputs;

c)“80 Hz”: the High-Pass crossover is activated at 80 Hz to determine the starting value of the high frequencies present at FRONT outputs.

5 • FRONT INPUT GAIN ADJUSTMENT CONTROL: It allows to adjust input sensitivity to the FRONT section from 200 mV to 4 V.

6 • REAR CROSSOVER SELECTOR: It allows to select the REAR amplifier’s operation mode:

a)“FLAT”: the REAR amplifier reproduces the whole audio range on grounds of the signal present at its input;

b) “63 Hz”: the High-Pass crossover is activated at 63 Hz to determine the starting value of the high frequencies present at REAR outputs;

c) “80 Hz”: the High-Pass crossover is activated at 80 Hz to determine the starting value of the high frequencies present at REAR outputs.

7 • REAR INPUT GAIN ADJUSTMENT CONTROL: It allows to adjust input sensitivity to the REAR section from 200 mV to 4 V.

8 • SUB CROSSOVER SELECTOR: It allows to select the crossover frequency of the SUB amplifier:

a) “50 Hz”: the Low-Pass crossover is activated at 50 Hz to determine the end point of the low frequencies present at SUB output;

b) “80 Hz”: the Low-Pass crossover is activated at 80 Hz to determine the

end point of the low frequencies present at SUB output;

c) “120 Hz”: the Low-Pass crossover is activated at 120 Hz to determine the end point of the low frequencies present at SUB output.

9 • SUB INPUT GAIN ADJUSTMENT CONTROL:

It allows to adjust input sensitivity to the Sub section from 200 mV to 4 V.

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