Control And Inicators - Macrom 42.29 Manual De Instrucciones

1 • RCA INPUT CONNECTORS: connect the pre-output leads of the head
unit to the input connectors.
2 • INPUT MODE SELECTOR: allows to select the amplifier 's
configuration as follows:
a) STEREO "ST" when the amplifier is used as a two-channel stereo
system (right + left);
b) MONO (L mono) when the amplifier is driven by one input signal "Left"
and outputs are mono-bridged.
NOTE: in this configuration, no signal is present at the "Right" pre-output
RCA output connection;
c) MIX "L+R": when the amplifier is designed to drive one or more subwoofers according to the
1-, 2- or 3-channel configurations. Thus, the inputs signals will be blended into one signal.
NOTE: anyway, the signals present at the Pre-output outputs will always be stereo.
3 • INPUT GAIN ADJUSTMENT CONTROL: input sensitivity ranges from 200 mV to 2V.
Set the mid position for all MACROM units.
In case the amplifier is to be connected to a head unit that is not of MACROM make but is
fitted with preamplified RCA outputs, proceed as follows:
a) set the volume control of your head unit to 3/4 of maximum ouput
level;
b) set the input gain control to the point where the maximum sound
level with no distortion is obtained.
4 • LOW-PASS SELECTOR SWITCH: it allows to select the
amplifier's output mode by activating the Low-Pass crossover.
a) Flat: the amplifier reproduces the whole range of frequencies from 20 Hz
to 20kHz
b) Low: the amplifier reproduces low frequencies only.
5 • LOW-PASS FREQUENCY ADJUSTMENT: allows the continuous
adjustment of the low-pass frequency between 30 and 600 Hz, to
determine the end point of the audio range present at the amplifier's
outputs and at the Pre-output outputs should the low-pass filter be selected.
6 • HI-PASS FREQUENCY ADJUSTMENT: allows the continuous adjustment of the high-pass
frequency between 30 and 600 Hz, to determine the starting
value of the audio range present at the Pre-Output outputs.
7 • PRE-OUTPUT SELECTOR SWITCH: allows to select the
Pre-output output mode as follows:
a) FLAT: a signal having the same form and amplitude as the
input signal is present at the Pre-output outputs;
b) LOW: a low-pass signal is present at the Pre-output outputs
in order to drive an additional amplifier. Frequencies can be
adjusted by means of the LOW-PASS FREQUENCY "5"
control;
c) HIGH: a high-pass signal is present at the Pre-output outputs in order to drive an additional
amplifier. Frequencies can be adjusted by means of the HIGH-PASS FREQUENCY "6" control.
CONTROLS AND INDICATORS
7
L(mono) ST L+R
L(mono) ST L+R
L(mono) ST L+R
Flat Low
20Hz
Flat Low
20Hz 30>600Hz
150Hz
100Hz 250Hz
70Hz
45Hz
36Hz
33Hz
30Hz 600Hz
Flat Low High
20Hz
Flat Low High
20Hz 30>600Hz
Flat Low High
30>600Hz
20kHz
340Hz
470Hz
520Hz
580Hz
20kHz
20kHz