Channel configuration | Macrom 2.100x guide

CONTROLS AND INDICATORS

9 • Speaker connectors: Outputs for connecting the loudspeakers.

The amplifier allows the loudspeakers to be connected with a minimum impedance of 2 Ohm for a channel in stereo configuration, and with an impedance of 4 Ohm for a "bridged" mono connection.

If the 3 channel configuration is to be used, the total impedance should not exceed the minimum value of 2 Ohm.

Make sure that the polarity of the connection between the loudspeakers is correct. Do not

allow inadequately insulated leads to come into contact with Ground, any metallic parts of the car, or with each other.

	Bridged		Bridged		Bridged
L	R	L	R	L	R

3-channel configuration

2-channel configuration

1-channel configuration

10 • Fuses: When replacing fuses, make sure that they are replaced with fuses of the same ampere rating. Use of the wrong type of fuse could seriously damage the components.

11 • + BATT connector: Connect the positive "+" of the battery directly, by means of a fuse located nearby, and use a lead having a sufficiently large cross-section to allow passage of the current. Do not connect this terminal to the car's own electrical circuit.

12• REMOTE-ON connector: Connect this to the remote-on start-up output lead (remote starting switch) or to the automatic antenna wire running from the main unit. It will now be possible to turn the amplifier on and off from the main unit.

13• GND connector: Attach this Ground connector, using a lead of adequate section, to a clean point on any metallic part of the car chassis, if possible to an already-installed screw. Never attach this clamp directly to the negative point of the battery, which could give rise to an unpleasant buzzing noise while the car is being driven.

14• Check control indicator: This LED indicates the amplifier functioning status.

WHITE: The unit is switched off

GREEN: The amplifier is functioning perfectly

RED: the unit is in a state of protection.

The amplifier is equipped with three protection devices:

-Overheating: If errors have been made during installation, and the amplifier overheats, the unit will enter into a state of protection before any damage can occur. Once the temperature returns to normal and the errors have been rectified, the unit will automatically start to function normally once again.

-Overloading: If several loudspeakers have been connected to the amplifier and the total impedance drops below the 1 Ohm limit that it can handle, the amplifier goes into a state of protection. The main unit will have to be switched off and on again in order to restore the amplifier to normal functioning.

-Short circuit in an output: In the case of a short circuit in the loudspeaker outputs, the unit will go into a state of protection to avoid serious damage to the final transistors. Normal functioning will be restored when the short circuit has been dealt with and the main unit switched on again.

2.100x specifications

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